Windows 7: Windows execute from network device BUG?

I've several problems using windows 7(64)
My current problem is running - regedt32 updates from a network device

I'm handling an automated setup... and have problems depending the way to
access the network. (i'm administrtor so normaly no security issue)

in workgroup/homeGroup environment
running from //server/share no problem
running on a mapped device /persist:yes to a drive letter
i get Cannot import <the file> Error opening the file ther might be a dikk or file error.

The problem is that for other install uses i get a simular problem on the non mapped device !


any way out ??