Don
Sat Feb 10 07:13:44 CST 2007
"Vinoj" <vinoj.kumar.s@gmail.com> wrote in message
news:1171092474.223050.96640@a75g2000cwd.googlegroups.com...
> On Feb 9, 6:04 pm, "Don Burn" <b...@stopspam.windrvr.com> wrote:
>> This is really a poor suggestion for many reasons. Some of the majors:
>>
>> 1. "The user who is logged in", as has been discussed before on this
>> forum, there can be more than one user "logged in", there can also be no
>> users logged in.
>
> He says it is for Windows 2000 but not whether it is a server version
> or a workstation version.
And your point is? If he puts it out for one, expect it to show up on the
other, especially since the install will not easily be able to determine
which it is.
>>
>> 2. File system filter driver. You are suggesting one of the hardest
>> programming models for this approach. Note: since the user is
>> concentrating on Windows 2000 there is a good chance that they want to
>> support Windows 2000 before the service packs needed for the mini-filter
>> model, making this really hard.
>
>
> If he really wants it for a single system then he can use one of the
> available filters like filemon for non commercial use.
Well first that is a comercial product, and will cost him a large sum to
buy the rights to use. Second, the file system community has discussed the
hacks that went into filemon ad nauseum, showing why you should not use it.
>> 3. Get the drive type in user mode. This conficts with the file
>> system
>> filter, since you would want to only layer above these devices.
>>
>
> In the beginning getting the drive type is what filemon does when it
> queries for volume info. I did a personal project called Deletion and
> Access Control manager found in Codeguru.com->List of Gurus->V and
> follw to my name. Let me give the link for Windows 95/98/ME version of
> it:
http://www.codeguru.com/cpp/w-p/files/article.php/c4459/
>
> I did the same project for Windows 2k/Xp using filemon as my filter
> driver for my personal purposes at home, and it worked fine in my
> development computer sponsored to me by my company. But when I said
> that the filemon driver crashes in my system because of low memory
> conditions a few years back, Mark Russinovich sent me a contract for
> $35,000 for using his program.
>
> So I stopped using the project for even my personal purposes. Luckily
> I had Filespy but it is far more complex that filemon.
>
Yes you were ripping off code that was posted as for research only, and
since so many people did rip it off, Mark removed the sources and makes
everyone pay.
--
Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting
http://www.windrvr.com
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