Registry Restore Using A Service

[nagadravid]

Hi, I have implemented a service which will create and restore registry back ups. Service runs under local system account. I am able to take backup and restore in admin mode using the service. But in Guest user mode I m unable to resore the Registry back up. Any one can help me out in this.

[vipin_nvk]

hm.. i faced a similar problem last week. The problem is that a windows service runs in a LOCAL SYSTEM account and not in the account in which the user is currently logged in. Hence, if you try to take backups under registry key HKCR then the registry back up would fail. What you have to do under this condition is write a code something like this: HKEY hKey; long error; HANDLE hToken = NULL; BOOL bEnablePrivilege = TRUE; // obtain the explorer handle to get the hToken if(GetExplorerToken(hToken)) // write ur function to get explorer token!! { if(hToken != NULL) { ImpersonateLoggedOnUser(hToken); error = RegOpenKeyEx(HKEY_CURRENT_USER,strRegPath,0,KEY_ALL_ACCESS,&hKey); RevertToSelf(); } } Now, you can use the hKey obtained to open the required registry key under HKCR and take the back up!! Cheers