I am attempting to add an unattended install of Diskeeper Pro v8 Build 479 to my XP SP2 CD. I am using guiunattended in the winnt.sif file and not runonceex. I have used the comamnd line with teh switchs found on this site but they do not work. The problem is Diskeeper setup executes (I know because I use the command line without the /s so I can see setup execute) but it does not install teh program. I have also tried Build 478 to no avail. All of my other programs install just fine (TweakUI, Norton Corp 9, Winrar, etc...). Any help would be appreciated.