Windows 7 Driver Signing different for XP and WIN7

[at2009]

If I want to get my 64-bit driver WHQL signed for Win7 then will this siging work on Vista and XP as well, or do I need to get it signed separately for each OS.?

 

[cybercore]

You should download and install different drivers for XP and for Vista/7.

Drivers - Download NVIDIA Drivers