How do I get games to work in a Limited User account, they work ok as administrator?
Try tips from KB929427 on Microsoft’s Technical Knowlegde Base. You can also use the Security tab on folder properties to apply Read,Write,Modifypermissions for the program folder in question for a given user or group (such as Everyone or Users). Windows Vista uses a new feature called Virtualize file and registry settings which is enabled and redirects any read/writes to a special folder in c:\Users\username\Appdata that reflects the folder in C:\Windows or C:\Program files and thus allowing older programs to run on Vista. The setting is configured in Local Security Policy.