I am using sharepoint 2007 sp2, it has been workig fine for the past 8 months but since one of the developers installed .net 4.0 framework, every time we create a new sharepoit publishng site or extend and existing application the home url displays an "Unknown
File Type" security warning message and asks users to download the file. If i manually tupe in the full url
http://www.mysite.com/pages/default.aspx it is displayed correctly. I have uninstalled .net 4 from the server but i still have the same error. I have tried to replicate this error on
a development server but sharepoitn works fine on that even with .net 4.0 installed.
Has anyone had the same issue ? I would appreciate any suggestios or help with troubleshootig this issue.
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