In couple of instances we have seen that after installing Visual Studio 2008 Beta, installing the RTM fails. There is no specific error but it is found that if it detects the Beta Components the installation fails.

In order to remove the Visual Studio 2008 Beta ( RTM Also ) the steps listed can be followed:

1. First make sure you remove Visual Studio 2008 from the Control Panel (Add/Remove Programs)

2. Make sure to remove the few more components which will be there at Add/Remove in case they are not removed after uninstalling Visual Studio 2008

a. Visual Studio 2008 Team Explorer

b. Microsoft Visual Studio Web Authoring Components

c. Microsoft Windows SDK for Visual Studio 2008 .Netframework Tools

d. Microsoft Windows SDK for Visual Studio 2008 Headers and Libraries

e. Microsoft Windows SDK for Visual Studio 2008 SDK Reference Assemblies and Intellisense

f. Microsoft Windows SDK for Visual Studio 2008 Tools

g. Microsoft Windows SDK for Visual Studio 2008 Win32 Tools

h. MSDN Library for Visual Studio 2008 – ENU

3. Delete the Folder C:\Program Files\Microsoft Visual Studio 9.0

4. Delete the Registry Key Below:

a. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\ Delete 9.0

b. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VSWCU\ Delete Microsoft Visual Studio Team System 2008 Team Suite – ENU

c. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VSA\ Delete 9.0

d. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\vsto runtime Setup\ Delete v9.0.21022

( In case you are not able to find any particular key you can ignore the same )

5. Once the above steps performed, with this E Mail you will find a attachment name MSIZAP. I am renaming it to .TXT

6. Save the file to “C” Drive and then rename it to msizap.exe ( You can install Windows Installer cleanup utility available in my download list and browse to the location C:\Program Files\Windows Installer Clean Up )

7. Open command prompt and make sure you are in the root drive C:\

8. Type msizap tw {80C06CCD-7D07-3DB6-86CD-B57B3F0614D8} ( Make sure you do not remove the bracket )

9. The MSI ZAP will make sure to remove if any components are left

10. Once these are done Restart the computer

11. This will make sure to remove the Visual Studio 2008 from the computer

This above steps should help removing the Visual Studio 2008 Beta from the machine and also if a situation comes where complete removal of Visual Studio 2008 is required the above steps can be followed.