If this error is seen when running applications (.exe files), then run the .exe association fix from here:
File association fixes for Windows Vista:
Ramesh Srinivasan, Microsoft MVP [Windows Shell/User]
Windows┬« Troubleshooting http://www.winhelponline.com
Winhelponline.com blog http://www.winhelponline.com/blog
"qameleon" <firstname.lastname@example.org> wrote in message news:64405AF9-45B8-4DE8-9169-59A1613D77B2@microsoft.com...
The error message that I get: "This file does not have a
> > program associated with if for performing this action. Create an association
> > in the Set Associations control panel."
This comes up with almost every application I try to open, some I can get
around by right clicking and opening as administrator.
I read something about the system restore, however my restore points don't
go back far enough...I think it ocurred in December, when my daughter