Download and run the script on the host machine to fix the issue

This article applies to:

• Acronis Backup & Recovery 10 Advanced Server Virtual Edition - Agent for Hyper-V

Symptoms

1. You have Acronis Agent for Hyper-V installed on a host system;
2. An attempt to back up guest systems via Acronis Agent for Hyper-V fails with the following error message in the Windows Event Log:

   Event Type: Error
   Event Source: VSS
   Event Category: None
   Event ID: 8193
   Date: 2/24/2009
   Time: 8:46:34 AM
   User: N/A
   Computer: %SystemName%
   Description:
   Volume Shadow Copy Service error: Unexpected error calling routine

   For information on how to view Event Logs see Exporting and Viewing Windows Event Logs.

Cause

On the host system, the following registry key is missing:

• HKEY_CLASSES_ROOT\Wow6432Node\CLSID\{F2C2787D-95AB-40D4-942D-298F5F757874}

Solution

To fix the issue, download and run the following script on the host machine:

• HyperVscript.zip

Running the script will add the missing key to the registry on the host machine. The issue will then be resolved.

More information

Contact Acronis Support if you need assistance.