Hi Mercier,

From your description, you're meeting some problem when try installing the
VS 2005 on your machine, and the machine has originally installed VS 2005
but corrupted, correctd?

Based on my experience, you can first do the following things to ensure the
clean of the original corrupted installation of VS 2005 and clear the
cached setup MSI:

Check the instruction for manually remove VS 2005

#How to remove Visual Studio 2005
http://support.microsoft.com/kb/907965

Since any executed msi will be copied and cached in logon user's Temp
folder, you can try empty your temp folder(%temp%) so as to make sure no
old MSI is cached.

For new installation of VS 2005,  the setup log file is a helpful resource
for troubleshooting, here is another knowledge base article introducing on
troubleshoot VS 2005 setup

#How to troubleshoot the installation of Visual Studio 2005
http://support.microsoft.com/kb/904732

Hope this helps.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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