Microsoft Visual Studio 2005 SP1 Troubles

I just went to download the new Service Pack for Visual Studio which was released about a month ago.  It’s pretty beefy – 430MB to download! 

After installing, I got this error:

 “The installation source for this product is not available.  Verify that the source exists and that you can access it.”

I tried it twice (it sits for about 10 minutes before displaying that error) and cursed a lot more, but finally found the solution which worked for me posted at ScottGu’s blog:

About the ”The installation source for this product is not available” problem – if you are you using Windows Server 2003:

If you extract the .exe file and see the properties on the .msp file under “Digital Signatures” you will see that the signature/certificate is not valid. (ScottGu: I presume this is a bug?).

To ”fix” (ignore) this:

1) Open local security setting: Start -> Programs -> Administrative Tools -> Local Security Policy.

2) Click on “Software Restriction Policies” and if it shows “No Software Restriction Policies Defined” then insert a new (right click the left pane node).

3) 2 x click on the “Enforcement” entry and under “Apply software restriction policies to the following users:” section change to “All users except local administrators”.

4) Maybe reboot

This should solve the problem (it did for me)..


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