How do I stop the "configuring Visual Studio..." message when opening Microsoft Office applications?
Solution 1:
This is old, but likely applies to this version: The Windows Installer dialog box may appear every time that you start Visual Studio .NET.
Try removing the Mso.dll file in C:\Program Files\Common Files\Microsoft Shared\Office## (32-bit) or C:\Program Files (x86)\Common Files\Microsoft Shared\Office## (64-bit), where ## is the Microsoft Office version number. Then perform a repair installation of Visual Studio. Be sure to create a restore point before you do this.