I'm trying to setup backup scripts on WinXP to use Volume Shadow Sets. I downloaded the VSS 7.2 SDK from MSFT, and used the include vshadow.exe to create a shadow set:

vshadow -script=vss-setvar.cmd f:

(note that I've tried both f: and c:)

vshadow executes just find, giving no errors, reporting the shadow is created. However, executing

vshadow -q

as the very next command results in "There are no shadows on the system" and, indeed, if I use dosdev to try and map the Shadow set named in vss-setvar.cmd, it will not work.

Am I missing a step?