There is a program called instsrv used to add and remove services. Put it in the $OEM$\$$\System32 and after PowerDvd installation, in your batch or RunOnceEx or whatever, execute instsrv "Cyberlink RichVideo Service(CRVS)" REMOVE I think you need to find out the actual name of the service, like wuauserv is to Auto Update and replace the "Cyberlink RichVideo Service(CRVS)" and without quotes. Just in case you don't know how to find the service name (most ppl do, but still) install PowerDvd, open services.msc, rightclick "Cyberlink RichVideo Service(CRVS)">properties and at the top it says service name. srvany.zip