When you upgrade a computer that is running the App-V 4.5 client to System Center Configuration Manager 2007 SP2, it may break all the File Type Associations (FTA's) for the virtualized applications.  This can occur because the SP2 installer updates...

When you try to upgrade the SQL Server database role from Microsoft Application Virtualization (App-V) Management Server 4.1 to Application Virtualization Management Server 4.5, the upgrade may fail with the following error message: Error 25119. The...

This article describes a hotfix package for September 2009 that contains the latest hotfixes for Microsoft Application Virtualization 4.5 Cumulative Update 1. Note We recommend that you test hotfixes before you deploy them in a production environment...

This question has come up numerous times: Do I need to re-sequence my applications when I move to a new OS? There have been multiple statements published and circulated about this topic and the real answer is “it depends!" What’s really important...

Microsoft Application Virtualization does not support applications that use shell extension handlers implemented with a custom dynamic-link library (DLL). The reason that APP-V cannot support applications with custom shell extensions is that this would...

When you upgrade a Microsoft Application Virtualization (also known as App-V) client from Windows Vista to Windows 7, you receive the following error message: Program Compatibility Report The program is blocked due to compatibility issues. Report the...