Calling DLL from VXD

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- Previous
  - 1
    - Question about Virtual Serial I followed the step of Eliyas Yakub How to Make a Virtual Port. Frome Step 1 to Step 3 I was success, but the step 4: Step4 Once the steps above have been completed, the bus driver can now start receiving IRPs from any application such as HyperTerminal. For a list of all the IOCTL IRPs that have to be handled, refer to the "SerialIoControl " function in the "serial" sample in the DDK. By implementing the handler code for these IRPs, the virtual com port should now be fully functional. Yes, I can use HyperTerminal to open the COMx that I had installed, but I can not handled the Serial IOCTL IRPs, I don't know what happened. I added the "SerialIoControl" function in the Bus_IoCtl(busenum.c)£¬ if (!fdoData->IsFDO) { ... status = SerialIoControl(DeviceObject,Irp); ... } I can't see any DebugCode of IOCTL IRPs in the DebugView, and the HyperTerminal said "Unable to open COMx. Please check your port settings" please reply me... Best Regards... Daniel Xu Tag: Calling DLL from VXD Tag: 29645
  - 2
    - MPIO DDK Dear All, We need to develop a failover driver for our storage system. In Microsoft's document, this driver must develop under MPIO DDK, but I can't find it neither in Win Server 2003 DDK or in win xp DDK. Can any body tell me where or how to get this DDK? Thanks, Karl Tag: Calling DLL from VXD Tag: 29644
  - 3
    - Call ACPI Method. How? The idea to create driver to be able to call any ACPI method. Calling to methog that belongs to particular device not a solution. Yevgen Goryachok Tag: Calling DLL from VXD Tag: 29639
  - 4
    - Is DrvEnableDriver exported by default? Hi! I am trying to use EngLoadImage and EngFindImageProcAddress to install a "filter" driver around a third party display driver. When I use dumpbin.exe /EXPORTS "dispdll_001.dll" (a utility that ships with VStudio6), it returns no exported functions. So how can I call the DrvEnableDriver function of the main driver from my "filter" if its not exported by the main driver's dll? The main display driver that I am trying to link to is S3 Trio32/64. I also tried with nvidia geforce4 driver and it doesn't export DrvEnableDriver either. It states on the msdn documentation that DrvEnableDriver must be exported by the driver dll. Well, I guess it makes sense since GDI as to link to it, but in that case shouldn't the exported function appears when I run dumpbin.exe? I'm just completely lost, that's all! Thanks in advance for your reply. Tag: Calling DLL from VXD Tag: 29638
  - 5
    - [Q] Checked build ndis.sys file Hello, every one. I'm trying to test my driver for WHQL test, but it require Ndis.sys file for HCT 11.2 at WinXP. Where can i get checked build ndis.sys file? Should i purchase it or is it included in HCT test kit or XPDDK? Thank you for your information in advance. //DAUM Tag: Calling DLL from VXD Tag: 29634
  - 6
    - Installing DiskPerf.sys on disk drive! Hello, I am trying to install the "DiskPerf.sys" filter driver using addfilter utility, but everytime I install it on devices listed by addfilter (addfilter /listdevices), the system fails to boot. The DiskPerf.sys help file mentions that the addfilter utility needs to be changed to install the filter driver, does anyone knows what need to be changed. I am using the following command line to install the Diskperf.sys as an upper filter; addfilter /device \Ide\IdeDeviceP0T0L0-3 /add diskperf.sys and addfilter /device \HarddiskVolume1 /add diskperf.sys Any help would be highly appreciated. Thanks, WD Tag: Calling DLL from VXD Tag: 29628
  - 7
    - EngLoadImage and function pool? Hi. Lets suppose a display driver would load an existing dll into its memory using EngLoadImage. Would that image be limited to call EngXXX functions as is the case for a display driver, or can the image call any kernel function? What I'm really trying to do is access the registry from my display driver but there doesn't seem to be any supported function for this!! so I was thinking of loading an image that uses ZwOpenKey and calling it from my driver. Can this be done or is there a simpler way? Thanks in advance. Tag: Calling DLL from VXD Tag: 29623
  - 8
    - Win SP1 XP DDK error Can someone tell me what the following error means: Linking c:\sio0_ezmon directory ******************** 'nmake.exe /c BUILDMSG=Stop. -i LINKONLY=1 NOPASS0=1 NTTEST= UMTEST= 386=1' NMAKE : U1073: don't know how to make 'C:\WINDDK\lib\i386 \free\usbd.lib' I am trying to rebuild one of Cypress's USB drivers using the Windows XP SP1 DDK in a checked environment can't figure this one out. Thanks. JSS Tag: Calling DLL from VXD Tag: 29621
  - 9
    - im crash I have an NDIS filter that works on "most" machines. However, on a couple machines we get a nasty crash: BugCheck D1, {0, 2, 0, 0} Stack trace: ChildEBP RetAddr Args to Child eb823974 8042c0c3 00000003 eb8239bc 00000000 nt!RtlpBreakWithStatusInstruction (FPO: [1,0,0]) eb8239a4 8042c487 00000003 00000000 00000000 nt!KiBugCheckDebugBreak+0x31 (FPO: [Non-Fpo]) eb823d30 8046856f 00000000 00000000 00000002 nt!KeBugCheckEx+0x390 (FPO: [Non-Fpo]) eb823d30 00000000 00000000 00000000 00000002 nt!KiTrap0E+0x27c (FPO: [0,0] TrapFrame @ eb823d4c) eb823dbc eb823dec bfb4fdd2 81f92c50 81f4df08 0x0 WARNING: Frame IP not in any known module. Following frames may be wrong. 00010246 00000000 00000000 00000000 00000000 0xeb823dec In the stack trace, on the second-last line, the value "81f92c50" is the pointer to the adapter structure we allocated and passed as the "ProtocolBindingContext" to NdisOpenAdapter(). This happens during bootup, after the BindAdapter() calls finish successfully but while the system is still coming up - we're getting bunches of QueryInformation() and SetInformation() OID's. To me it looks like someone is dereferencing a null function pointer. Any ideas who or why? Thanks, Warren Tag: Calling DLL from VXD Tag: 29606
  - 10
    - How do I periodically update my driver during development? I'm new to the DDK. I've never developed any drivers. I have the XP DDK. We have developed a custom PCI card (64-bit @ 66 MHz). We need to develop a throw-away driver that tests our hardware/firmware design. My driver needs only simple functionality. 1) Master true 64-bit transfers accross the PCI bus. 2) Allow our custom card to master single 64-bit transfers back into PC memory. I don't need to handle interrupts. My application will periodically check for a transfer. 3) Control multiple cards. Our target machine is a Dell Xeon Precision 650 under Win2K. It is a 32-bit machine with a couple of 64-bit PCI slots. I've watched the DDK videos and begun architectural tests on the toaster func example. For my first test, I've added three integers to the device extension and defined control codes for getting and setting each. How do I periodically update my driver during development? I seem to recall Brian Catlin suggesting that I need only install the driver once. After that, I can simply copy toaster.sys to C:\WINNT\system32\drivers. I can't get this to work on Win2K. I have to update the driver from the Device Manager using the inf file AND reboot the system. Is there a better way? Tag: Calling DLL from VXD Tag: 29605
  - 11
    - Starting and Stopping a driver Hi, NT4 had a panel to start and stop drivers without rebooting. Where can I find this panel in Win2000 ? It seems to no longer exist... so how can I do start and stop a driver now ? Tag: Calling DLL from VXD Tag: 29597
  - 12
    - how download the windows2000 ddk from microsoft web site? how?download the Win2K DDK?is it free now? Tag: Calling DLL from VXD Tag: 29589
  - 13
    - HID Report Maximum packet size for low speed devices over interrupt endpoint is 8 bytes. Can I use reports longer than 8 bytes? How do I have to format such reports? Can I use report ID field for such long reports ? Thanks. Tag: Calling DLL from VXD Tag: 29588
  - 14
    - is wmi supported by display drivers? Since display drivers are not "normal" wdm drivers, I would like to know if they support windows management instrumentation (WMI)? Also, is wmi bidirectionnal? As I understand, wmi is used to send driver information to user mode application, but can the opposite by done? That is user mode application sending information to driver? Thanks in advance. Tag: Calling DLL from VXD Tag: 29578
  - 15
    - Drivers for Windows XP Hi there! I have a Slot 1/Socket 370 M748LMRT PC100 Motherboard from PcChips and i need drivers for Windows XP. Does anyone know where i can download the drivers? Thanks. -- []'s woodlong Tag: Calling DLL from VXD Tag: 29577
  - 16
    - can display driver access registry? What function can a display driver call to get registry settings. Videoport driver can simply call VideoPortGetRegistryParameters but i wasnt able to find any similar function for display drivers. I really hope there is, but if not how should I store setting information? Tag: Calling DLL from VXD Tag: 29576
  - 17
    - Booting over USB 2.0 (with XP), some success... Hi all, I am attempting to make XP boot over USB (1.1 or 2.0). I know that this type of booting is "unsupported" by Microsoft. In fact, you cant even install XP on a USB drive. However, if the bios supports it, it is possible to boot from USB form a pre-installed version of XP. First, I really think that there is no need for any driver developpement since XP has every driver needed to boot over USB. My first attempt at a boot from USB resulted in a reboot after MUP.sys. Now it crossed my mind that maybe USB was not enabled at boot time so I created a new Group called USB miniport and USB storage and placed usbehci.sys, usbohci, usbhub and usbstor right after SCSI miniport in load order. I also changed the types so that USB is loaded at kernel time. I boot in /sos and see the USB drivers load right after the SCSI miniport. Unfortunetly, no luck I still have a reboot after MUP.sys. I then installed DriverStudio to see if I could write a simple USB mass storage driver to make things work. But after installing DriverStudio I tried again to boot over usb to see what happens with SoftIce and behold: the thing boots! It works even when you skip the boot message stating if you would like to skip the debugging. The only wierd part is that to log in to XP I now need to press cntl-alt-del when it says "loading personnal setings..." when you click on your username because it freezes. I investigated and found that SoftIce creates a group called NTIce that loads 4 drivers: nwfilter, sigvid, sigsym and ntice. Now something in these drivers is causing the USB boot to work. I just have no idea what that is. My idea is that sigsiv is printing a message on the screen saying "Do you want to load .... (press ESC to skip)" and waits a couple of seconds. Is it possible that this give the USB drivers enough time to enumerate the storage disk and boot or are these 4 drivers doing some obscure thing that would suddenly make the USB boot work? I know that sigsiv does more than just print a message to the screen. It must capture mouse events and connect to the VGA adapter to print the message. Maybe this is what is causing the boot to work for some unknown reason... Without this knowledge what approach could I use to boot over USB? Would it be a good approach to write an upper layer driver that would make the glue between USBSTOR and the primary boot disk drivers? Should I write my own USB storage driver which I could then use in the installation of XP using F6 in the textual part? What options do you think would work? Thanks in advance for any help, Daniel Shane Tag: Calling DLL from VXD Tag: 29562
  - 18
    - STATUS_IO_TIMEOUT Hi, Sometimes I get STATUS_IO_TIMEOUT when I send Async request to the 1394 driver stack. Why will we receive STATUS_IO_TIMEOUT? How to avoid this error? The same code works fine other times. Any help is appreciated. Thanks. Tag: Calling DLL from VXD Tag: 29555
  - 19
    - AV/C driver help! Hi, I'm trying to make a driver for a AV/C Tuner device, but I have major problems. The driver is there and I can communicate with avc.sys and avcstrm.sys, but I cannot open a stream. I found out that the problem is the hPlugLocal value which make the function fail. I'm not sure where i can get that handle from. Using the result from 61883's CreatePlug didn't gave me any success. I would like to know which function I have to use to establish the connection to the tuner to receive the data stream from the isochronous channel. Is there an example source how to use avcstrm.sys? Thanks ... Tag: Calling DLL from VXD Tag: 29552
  - 20
    - Which video card registers a driver is setting? I am trying to reverse engineer the Windows 98 driver for a video card in order to find out what hardware registers on the card the driver is setting. To do this under DOS, all I have to do is get the PCI offset in memory of the video card, and then instruct my debugger to break when the memory address corresponding to the register I am interested in is written to. I have absolutely no idea where to begin to do this under Windows, or if it is even possible. Can anybody point me in the right direction on how to accomplish this? Cody. Tag: Calling DLL from VXD Tag: 29549
  - 21
    - Dual DDK? Can the XP sp1 DDK reside on the same box as the Win 2000 DDK? I haven't received the XP DDK yet so I wanted to prep my computer prior to installation. Thanks. Tag: Calling DLL from VXD Tag: 29543
  - 22
    - WMI .Put() works on XP, but fails on Windows 2000 I've added some custom OIDs to an NDIS driver we are developing. I also wrote a user app in C# that correctly querys and sets these ULONG values as long as it is run on Windows XP. When running on Windows 2000 I can query at will, but all attempts to set a value fail with a result of WBEM_E_INVALID_PARAMETER. I have a breakpoint set at the beginning of my driver's xxxSetInformation function that never gets hit. I get the same result, (query OK, set object fails, breakpoint never hit), when I access the OID via <windows>\system32\wbem\wbemtest.exe, so the problem isn't in my user level code. I'm running as an administrator in both cases so I don't think there are any security releated issues. Q1) Do I need to configure Windows 2000 in some way to allow write access to custom OIDs? Q2) Does my NDIS miniport driver need to do anything special for Windows 2000 to allow write access? Tag: Calling DLL from VXD Tag: 29539
  - 23
    - Printing from remote machine returns incorrect page numbers Hello! I hope this is the correct newsgroup for this question. I wrote a program using API to monitor a printer queue on a Windows 2000 Server. It monitors all printjobs that are being printed and stores important information like the number of pages printed,... in a database. Monitoring printjobs that are being printed locally is no problem - all the fields are filled with the correct information. If a user prints a document from a Windows 2000 client machine using Word2000 or Notepad I also get all information (but there is a problem in one specific case). Windows 2000 Server local printjob (OK) Word document has 1 page - I print 100 copies Result is: Pages Printed: 1 - Total pages: 1 - Copies: 100 (In this case I can at least calculate the number of pages printed) Windows 2000 Client using shared printer from Windows 2000 Server (PROBLEM!!!) Word document has 1 page - I print 100 copies Result is: Pages Printed: 1 - Total pages: 1 - Copies 1 (????) and even more confusing Windows 2000 Client using shared printer from Windows 2000 Server (OK) Word document has 2 pages (more than 1 is enough) - I print 100 copies Result is: Pages Printed: 200 - Total pages: 1 - Copies 1 (This is also OK for me since I just want to know the number of pages printed) Both server and client are running Windows 2000 SP4 Office verison is 2000 with all SPs but this shouldn't matter since it also happens using notepad,... Also when watching the printer queue in Windows you can see the same information that I explained above. Why does Windows tell that there is just one page printed even if I print 100 copies from a client machine using the shared printer? Is this a bug - and is there a hotfix or some sort of workaround for this? Thank you for your help! Thomas Tag: Calling DLL from VXD Tag: 29534
  - 24
    - COM port init hello! i need monopolize com ports by my prog. i can't use standart windows com port api because i have to immediatelly response to request. i decided to use kmd. driver works under XPE with "standart computer" (not "computer with acpi"). driver works properly until i deleted serial.sys and serenum.sys to prevent windows to connect to ports. when i deleted drivers port read always return 0xff. what i have to do to initiate ports. thank you! Tag: Calling DLL from VXD Tag: 29531
  - 25
    - UsbHid driver About 50% of HID reports (every second one) from my custom device are lost. I use ReadFile function in the loop to read reports. What is interesting that another third-party utility receives about 95% of valid data. About 5% is lost. Any idea where can be the problem ? Some more details: Device is low-speed, using interrupt endpoint for sending 8 bytes of data each 10 ms. Tag: Calling DLL from VXD Tag: 29517
- Next
  - 1
    - Kernel DLLs in NDIS drivers I have a quite big and complex NDIS/WDM driver (~ 300 Kb) and would like to split some stuff into several DLLs. 1. What are my chances to pass compatibility test & get it logo'ed? 2. Do kernel DLLs work on win9x? Thanks, - PA Tag: Calling DLL from VXD Tag: 29511
  - 2
    - assigning ipaddress dynamically to IM Driver. Hello, We want to assign the ip address to virtual miniport of IM Driver (TCP/IP->virtual miniport) for some session. Modifying registry does not help... How these things are getting managed on windows.. We need to this in application or driver?? ipconfig and all utilities does not show changes done in registry till reboot(which is not possible in our case) how dhcp address assignment works dynamically..(without reboot..like winipcfg)?? So similar kind of thnig is possible(not dhcp) but assigning ip address dynamically to virtual miniport of driver. Thanks in Advance, nimeesh Tag: Calling DLL from VXD Tag: 29510
  - 3
    - PASSTHRU bugs? Hi, all! I've looked through PASSTHRU (nice pun =) ) recently and found out, that it conflicts with PnP section of IM drivers. 1.DDK states: "No Receives nor Status should be indicated while virtual miniport of NDIS intermediate driver is sleeping" PASSTHRU checks for MPDeviceState at the ProtocolStatus and not retranslates it up when virtual miniport is sleeping, but does not do this for its ProtocolReceive. Is it a bug? 2. DDK states: "No sends nor queries (requests) should be send to lower driver while protocol part of NDIS intermediate driver is sleeping" Again, PASSTHRU checks for PTDeviceState in MiniportSetInformation/MiniportQueryInformation, but does not check it in the MiniportSend nor MiniportSendPackets. Is it a bug? Thank you in advance. Tag: Calling DLL from VXD Tag: 29504
  - 4
    - CYPRESS USB DRIVER Hi all, Let me go right to the point. 1) Is there any substitution for ezusb driver such that allows asynchronous bulk transfers? 2) When the request (for bulk transfer) stalls what is the best way to cancel the request? 3) Suppose I need to arm the driver (issue bulk request for reading to the host) and after that issue interrupt request to the periph to start writing the data. So far with blocked transfer mode, my second request is not sent because host is stalled on the first request. The first request could not be satisfied because only after the second request is sent the data will start coming. If I would have driver with asyncronous capabilities could the second request be processed ealier? (are all requests passed through the same driver's queue in first-in first-out fashion?). I guess if I will send the second request from the other thread it will go to the different driver's queue and can be processed ealier but I don't want to do it becasue of the possible race conditions. Thank You, Dmitri. Tag: Calling DLL from VXD Tag: 29500
  - 5
    - Using IPrintOemUni::ImageProcessing and soft fonts I am trying to use IPrintOemUni::ImageProcessing combined with soft fonts to use unidrv to drive a printer which requires custom compression of low resolution (images, lineart) data as well as custom compression of high resolution (ie font) data. I was hoping to compress the low-res data in ImageProcessing() and then use the TTDOWNLOAD_TTOUTLINE option of TTDownloadMethod() to get the font data separately through calls to OutputCharStr(). However when I try this I find that OutputCharStr() is never called and the text is always rendered at the low resolution. Is what I want to do possible? I have tried all the options to TTDownloadMethod(), and none of them seem to make a difference. Regards, Hank Jones Tag: Calling DLL from VXD Tag: 29495
  - 6
    - setupdi calls I was working with the setupapi calls on windows 2000, the only error i got while executing, was " unresolved external symbol _imp_setupdideviceinfo " and such for all the setupdi calls. can Anyone help me out to resolve these errors in the obj file. thanks a lot shradha Tag: Calling DLL from VXD Tag: 29491
  - 7
    - Is this a valid INF directive? [Xscan.] I noticed this delimiter within an INF file. I can't find any documentation within the MSDN that states this is valid. Is anyone familiar with this type of undecorated section? Can someone confirm it is valid? Thanks! JW Tag: Calling DLL from VXD Tag: 29490
  - 8
    - Watchdog in WinXP Hi, I want to know if there are any ways to tweak the Windows Watchdog registers/values. One of our Driver functions takes up more than 15seconds (WAtchdog timer value), to complete its operation. And hence the Watchdog fires and the system bugchecks with THREAD_STRUCK_IN_DEVICE_DRIVER. As I cannot reduce the execution time in my driver, I want to know, if there are any interfaces to tweak watchdog registers or parameters if watchdog is emulated in software. Regards, ashok. Tag: Calling DLL from VXD Tag: 29489
  - 9
    - USB BULK speed, driver hello, I am developing driver for CYPRESS USB2.0 FX2, EP2, BULK IN, My problem is that I must do BULK_READ within every melliSecond or even 500uS or less. Otherwise the data will losed between two BULK_READ, because the FIFO in CYPRESS FX2 is very small. How can I do that? Is it possible to let the Driver continuesly do BULK_READ, and fill an ring_buffer? time between 2 BULK_READ must be 1ms or less. thank you very much. william Tag: Calling DLL from VXD Tag: 29488
  - 10
    - Where to start learning to program drivers I'm an applications developer and have been for 15 or so years. I'm finding it necessary in my job to work on drivers, including writing a brand new one from scratch. The only experience I have writing drivers is for the old MacOS where I could do whatever I wanted with no real kernel to speak of. With Windows it seems to be a very different story. Where should I begin when learning how to develop drivers for Windows. 9x and 2k/XP? ( I really don't care about NT 3/4 right now ). Are there any books that start from the basics and go from there? I don't need a "for dummies" book but I do need something that starts from the beginning and ends with most of what I need to know to write a fully functional driver. Thanks, Janik Tag: Calling DLL from VXD Tag: 29465
  - 11
    - Anyone familiar with USB bulk transfer? I need to write a terminal program that does bulk transfer to our Net2888 chip. Any help/suggestions/direction would be greatly appreciated. Tag: Calling DLL from VXD Tag: 29457
  - 12
    - ndisuio.sld The NDISUIO sample in XP DDK includes a file with .sld extension (ndisuio.sld). Does anyone know what is this file used for? It certainly is an XML file with a different extension... Thanks, -Prabhu Tag: Calling DLL from VXD Tag: 29453
  - 13
    - INF XP and 2000 1) How to have XP and 2000 use same INF file. I know we can use OS decorators in sections to keep one INF for both OS. But decorators like .NT, .x86 cannot separate XP from 2000. Is it .xp for XP sections and .NT for NT and 2000? I dont worry about 98 and ME. 2) Can we have different version sections for different OS in same INF. I want to use different class GUIDs for different OS. 3) What should be the classname for 1394 device driver (NOT Host controller driver). I tried 1394Test and chkinf raises error message 'obsolete or unknown class name'. Thanks for the comments. Tag: Calling DLL from VXD Tag: 29452
  - 14
    - Problems WMD Driver I am having problems finding any information on WMD Drivers. Can someone help? Tag: Calling DLL from VXD Tag: 29433
  - 15
    - Two devices in one driver Hello, I need create two device objects in one driver (keyboard filter), first device object is upper keyboard filter and second device object will be used to communicate with user mode application. I never created two device objects in one driver, how I may do it? How I may write dispatch routines? May one dispatch routine serve two device objects, or every device object must have its own dispatch routine? Thanks, Marian. Tag: Calling DLL from VXD Tag: 29426
  - 16
    - PageSize units inconsistancy? UniDrv and .NET We are developing an application that automatically prints pages based on data retrieved from a database. The data includes the printer name and the desired page size. Our printer doesn't support any standard page sizes. We've created our own printer driver based on UniDriver. The printing application can successfully select the desired printer. However, selecting the desired page size doesn't work. We're trying to select the page size using the PaperSize.PaperName property. Here's the C# code: // m_PrinterName is the name recognized by Windows // pageSizeName is the name of the page size matching that in the GPD file. // debug only - look at current default paper size. PaperSize psDefault = pd.DefaultPageSettings.PaperSize; // Create a PrintDocument PrintDocument pd = new PrintDocument(); // Use a standard print controller - to avoid the status/cancel dialog pd.PrintController = new StandardPrintController(); // Set the printer name (from the printer device object) // This name must match the installed Windows printer. pd.PrinterSettings.PrinterName = m_PrinterName; if( !pd.PrinterSettings.IsValid ) { // Log the error and then quit } foreach( PaperSize psize in pd.PrinterSettings.PaperSizes ) { if( psize.PaperName == pageSizeName ) { pd.DefaultPageSettings.PaperSize = ps; // select this one break; } } The interesting thing here is that the units for the sizes (width and height) are not consistant. For the particular test that I'm running I know that the paper size desired is the same as the default size for the printer. But when I look at the properties of the default paper size (psDefault above) and the selected size in the list (when psize.PaperName == pageSizeName ) they don't match: default selected kind: 0x103 0x94 width: 0xde4 = 3556 0x578 = 1400 height: 0x10de = 4318 0x6a4 = 1700 name: "custom" "14INX17IN" The size units for the default appear to be hundredths of centimeters, while the size units for the selected paper size are hundredths of inches. But using the selected paper size doesn't work (the page is too small). The driver seems to want the metric size. The documentation indicates that sizes should be hundredths of inches and that's the unit used in the rendering code. Any idea what's happening here? Thanks, Tom Tag: Calling DLL from VXD Tag: 29418
  - 17
    - Differences between inf installation in w98/ME and 2000/XP Hi, Thanks everyone who helped me with some problems some time ago. I built a wizard for installing modem - based on inf files included by manufacturer. It runs properly on 2000/XP, but fails on w98/me. The basic schema is like this: - InstallHInfSection (copies files) - optionally remove "unknown devices" - i.e. modems not properly installed (SetupDiGetClassDevsEx, CM_Get_DevNode_Status_Ex, SetupDiCallClassInstaller - with remove flag) - reenumerate dev node - for root - scans system for new devices This schema installs modem properly on 2000/XP, but fails on W98/ME Last step sometimes runs scanning, sometimes not, and even if it starts the scan, the new hardware wizard shows up and asks for the path to inf file. Could you please help with that? -- K. Support bacteria -- it's the only culture some people have! Tag: Calling DLL from VXD Tag: 29415
  - 18
    - WDM driver instalation I have simple audio WDM driver that I install it with an INF file. I specify in my INF file StartType of 3 wich means SERVICE_DEMAND_START. After instalation I get these registry keys in HKLM\System\CurrentControlSet\Service\MyAudioWMD Start 3 Type 1 ErrorControl 1 The problem is when I restart my computer, my driver is loaded at system startup not as it is specified in Start option at demand start. When I set Start type to SERVICE_DISABLED (0x4) the driver is not loaded at system startup, which is the expected behaviour. Is there anybody that experienced this problem ? I suppose that PnP manager is involved at sometime or may be LoadOrder key in registry, but how can I control and instruct them ? The [Vesrion] section of my INF file is : [Version] Signature=$Windows NT$ Provider=%Provider% Class = Media ClassGuid = {4d36e96c-e325-11ce-bfc1-08002be10318} DriverVer=07/28/2003,5,0,1636,1 and the service section is : [DriverService] DisplayName = "WDM Audio driver" ServiceType=1 StartType=3 ErrorControl=1 ServiceBinary=%10%\system32\drivers\wdmaudio.sys Thanks Eugene Tag: Calling DLL from VXD Tag: 29409
  - 19
    - Blocking Setup API call (win2k) - for MS Hi, I use a utility which is using setup API's to enable/disable my virtual network adapter. The code simply locates the device and using DIF_PROPERTYCHANGE along with SetupDiCallClassInstaller enable/disable the device. Sometimes after system resume from suspend, when this utilty call SetupDiCallClassInstaller it never returns from that call. Setup API log file implies that the thread is executing the default installer code. If I attach with debugger to the blocked process I could only see that the stuck includes calls to SetupDiCallClassInstaller (and subsequent calls to function one of the RPC dlls - I think rpcrt4) Thnaks for the help. Gana Tag: Calling DLL from VXD Tag: 29408
  - 20
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hi!

i am writing a vxd to hook file i/o.
i want to call a dll function from my vxd.
i tried to use SHELL_CallDll,SHELL_LoadLibrary etc.
but i am getting link error
"unresolved external symbol _SHELL_CallDll"
"unresolved external symbol _SHELL_LoadLibrary"
i also tried to use PELDR_LoadLibrary
but iam getting same errors.

how do i link them properly?

thanks
Anshu

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