If you have problems installing Virtual PC Additions on a Windows Server 2008 Core, ensure that you don’t have the sound card enabled.
Otherwise the installation will fail and start a rollback. If you look in the msiexec logfile you will find a 1603 error message.
Once the sound card is deactivated the installation works as it should.
Hi, very nice post. I have been wonder’n bout this issue,so thanks for posting
it is work for me