Hi,

I have seen that the Vista USB driver stack is released in two different
versions. The driver stack shipped with the MSDN DVD's is the RTM version:
6.0.6000.16386 (vista_rtm.061101-2205), the version that is now on the market
is GDR: 6.0.6000.16400 (vista_gdr.061212-1500).

I have done a binary comprision of the driver files. E.g. usbd.sys has only
a new data from the compilation and a new version information. But other
drivers like usbport.sys differs in more than the version.

What is the difference between these versions?
Is it required to test kernel mode drivers with both versions?
Is RTM the latest beta version?

I have got a problem report from a customer. He claims that the driver is
not running with GDR that was tested successful with RTM! This problem is
still under investigation.

Any comments?

Thanks

Guenter