Veeam v13 + Hyper-V – AAP not working (no production checkpoints) → FIX

Hi everyone,

just wanted to share something we hit recently after deploying Veeam B&R v13 in a Hyper-V environment.

The issue

After the upgrade, Application-Aware Processing stopped working.

Symptoms:

• No Hyper-V production checkpoints
• Multiple VMs affected
• Happening across different customers

What we checked

We went through all the usual stuff:

• Firewall → OK
• Permissions → OK
• VSS → OK
• Integration services → OK

Everything looked fine… but still no AAP.

The cause

After a long search, we found a post from mazvazzeg that pointed us in the right direction.

Turns out it’s a wrong registry value for the Hyper-V VSS service (vmicvss).

Path:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\vmicvss

Wrong value in ImagePath:

%systemroot%\system32\svchost.exe -k VeeamHvVssGroupstemNetworkRestrictedRedirectionGuard -p

This basically prevents the service from starting.

The fix

Change it to:

%SystemRoot%\System32\svchost.exe -k VeeamHvVssGroup -p

After that:

• Service starts correctly
• AAP works again
• Production checkpoints are created 👍

We’re still waiting for feedback from Veeam on whether this is officially supported or if there’s a better fix.

This is the original post: https://www.reddit.com/r/Veeam/comments/1std7jf/veeam_hyperv_vss_application_aware_processing/?tl=de

Hope this helps someone 👍