This is a very old fix but I keep seeing it when attending customer sites. The symptoms are PVS Console is very sluggish and you sometimes get the error :-
“The snap-in is not responding, end now or cancel to return to the MMC to check the status of the snap-in.”
By hitting Cancel the console loads but its very slow.
To fix it on Pvs 6 you should get this prompt….
Click Disable. However if you didn’t click it or choose something else you wont get prompted again.
The best way to fix this is to create a file called mmc.exe.config with the following contents…
<?xml version=”1.0″ encoding=”utf-8″?>
<generatePublisherEvidence enabled=”false” />
Copy this file to c:\windows\system32 and c:\windows\sysWOW64.
On restarting the console you should see the problem resolved;.