I had a second customer where our burn installer failed on Windows 7 
Professional x64.  I had him go into the "Package Cache" folder and encryption 
was not set on it and all subfolders but was set on the one remaining msi file. 
 I had him remove the encryption from the file and rerun the installer and it 
then installed successfully.  Must be a bug in rollback also because it left 
one MSI there (I cache 3 in total).  I guess good thing otherwise I wouldn't 
have found the cause.

Has there been any problems with Visual Studio install for Windows 7 
professional?  If I've seen this twice Visual Studio team must have seen this 
before.  I tried reproducing this on my Windows 7 Ultimate x64 computer by 
encrypting the package cache folder and then installing but it installed fine 
(as you would expect). 

Where is the encryption code located in the burn source code?  
Maybe it should be changed to check MSI files before they are run from the 
cache and decrypt them.  What do you guys think?

Wes  


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