I was recently setting up Group Policy software deployment on Windows Server 2008 R2. Everything went fine until I came to Adobe Reader 10.1. Server was refusing to add the package with following error.
Add operation failed. Unable to extract deployment information from the package. Run validation to the package to ensure that the package is correct.
I was sure that package was good as exactly the same files were deployed in number of different locations.
Package was successfully deployed by performing the same actions using another domain administrator account. I never go to the bottom of what exactly is causing this issue and why it only affects Adobe Reader, but it seems that it's related to user profile or home folder setup. Recreating user profile on the original account resolved the problem as well.