How to Resolve Error Attempting to Explore a Restore Point

Archive Manager is running on Windows 2008 Server. When you click the Explore button to explore a restore point of an archive with a large number of items in it, a dialog box asks you to wait while the view is created.

If you open Task Manager, you can see CPU usage for the DATASTOR ViewStor process. After 60 seconds, a dialog box appears indicating an error occurred creating the view. An error occurred attempting to build the view to explore. Unable to access location file://[email protected]/ViewStor/...

ViewStor Explorer uses the webclient service to browse a point in time as a virtual file system. The webclient service is timing out before the view can be generated.

Edit a registry entry for webclient to increase the timeout period.

  1. Open the registry editor. Go to Start, Run, type regedit, and click OK.
  2. Go to registry hive HKLM\SYSTEM\CurrentControlSet\Services\WebClient\Parameters
  3. Add or edit DWORD entry SendReceiveTimeoutInSec. This entry specifies the timeout in seconds that the WebClient service uses after issuing a request, such as “GET /file.ext” or “PUT /file.ext”. Increase the value to 5 minutes. The decimal value is 300.

Alternately, if you wait for the ViewStor process's CPU usage to drop to zero, then click the Explore button again, the restore point opens in ViewStor Explorer without error.