When trying to install a driver package signed with Verisign code signing
level 3 certificate in Windows xp 64 systems, I always see the following
error in setupapi.log:

Error 0x800b0109: A certificate chain processed, but terminated in a root
certificate which is not trusted by the trust provider.

The driver package installs correctly in Vista.

I've installed my certificate correctly in the "Trusted Publishers" store
using certmgr.exe

Is it possible to to use Authenticode selfsigned drivers in XP ?