My Runonceex.cmd calls by cmdlines ( [COMMANDS] "RunOnceEx.cmd") Acrobat, k-lite, acdsee8, symantec9, msoffice - RAR-sfx archives with some added comments: Path=.\%temp% Setup=%temp%\Office2003\setup.exe TRANSFORMS=options.MST /qb- (for example) Overwrite=1 Silent=1 Other (winrar,1C) - msi packages. When runonceex starts, winrar,1C,k-lite,acrobat install ok, but other rar-sfx archives(acdsee8,symantec9,msoffice) doesn't install (They only extract to %temp% folder ). I think there is some limits for number of commands in one line of runonceex Need help RunOnceEx.cmd