title: .NET Install Package Sometimes Not Completely Removing Previous Versions
body: <p>I distribute my application using a VS2008 install package, which normally works great.  When I create new versions of the app, I go in and increment the <code>Version</code> property on the install package and verify the <code>RemovePreviousVersions</code> property is set to True.</p>
  
  <p>This works just fine most of the time - I just run the install package for the newer version and the older version is uninstalled and the newer version replaces it.</p>
  
  <p>However, occasionally the install package will run successfully, but when I start the program the old version starts up.  Apparently the old version of the .exe is still present.</p>
  
  <p>I end up having to completely uninstall the software and install the new version, which always works, but is a pain.</p>
  
  <p>The file isn't in use as far as I can tell and the install package doesn't tell me to reboot.</p>
  
  <p>Any ideas about what's going on here?</p>