I cannot update my SBS Server with an official licence because the program says : Licence for the following products are missing : Avast SharePoint Server Edition.
I have an Avast Premium SBS Server licence valid at march 23, 2011 !!!
On Microsoft SBS Premium server, SharePoint is included …
The solution is unfortunately to de-install the sharepoint plug-in.
It was never a part of the SBS setup and older versions DID install it while the update system apparently did not notice this plug-in was " illegally" installed.
They’ve repaired the update system to notice the plug-in while updating and it will now block the update.
Please look at this thread to see what was what said then: