Recently I started to recieve lots of errors with Message ID: 2302 for the SMS_DISTRIBUTION_MANAGER component after validating a package. The only way to stop this error was to delete the package from the ditribution point and then redistribute it agin.
If I after that tried to validate the package once again, the error came back..
This happens to all my packages if I select "validate package".
After some help from Microsoft, the resolution to this problem was to move a FILE named "Program" (without any file extension) that was located in the root of my E:\ drive to another destination.