I found this at the PGP website.
Is PGP Desktop supported on Windows Vista?
This answer pertains to PGP Desktop and Windows Vista.
Answer
Any version prior to PGP Desktop 9.6.x (e.g. 9.5.x, 9.0.x, 8.x) is not
supported with Windows Vista. Version 9.6.x supports 32-bit Windows Vista.
Currently PGP Desktop is not supported using 64-bit operating systems.
"Jane C" wrote:
> Hi,
>
> PGP 9.6.1 is not listed as being compatible with Vista. You may need to
> upgrade to version 9.8, which is Vista-compatible.
>
> "pajosa" <> wrote in message
> news:25851E29-5301-4FF9-AFC0-...
> > Almost everytime I access a network drive, Vista will crash with following
> > message:
> >
> > Bad Pool Caller
> >
> > 0x000000C2 (0x00000007, 0x0000110B, 0x0A10205, 0x8B5D0448)
> >
> > Any suggestions, running Vista Ultimate SP1 and updated all drivers, BIOS
> > and chipsets.
> >
> > Dell Latitude D830 - All laptops with Vista Ultimate and PGP 9.6.1 in our
> > Active Directory SAN environment are having this problem.
>
> --
> Jane, not plain
64 bit enabled :-)
> Batteries not included. Braincell on vacation ;-)
> MVP - Windows Desktop Experience
>