Can a 32-bit user-mode driver work on top of a 64-bit OS?

Question

I am looking at information on the development of 64-bit drivers; I found that drivers must be rewritten for compatibility with a 64-bit OS. However, I was wondering if this is true for user-mode drivers.

The reason I'm asking about this is because I understand that user-mode drivers go through the Win32 API, so theoretically they should work on WOW32.

It's true?

Thanks Jaime

Answer 1

User mode drivers can be 32 or 64 bits, but note the following:

64 , . API ( Windows NT® 4.0) .

http://www.microsoft.com/whdc/driver/kernel/64bit_chklist.mspx