I placed unrar.exe on the cd in \$oem$\$$\system32\unrar.exe, making the command available I'm not sure if making them self extracting files would be any better as far as compression, but I like to have unrar.exe in my path anyways. ECHO Extracting Applications... %systemdrive%\windows\system32\unrar.exe x %systemdrive%\install\apps.rar %systemdrive%\install I dont think this option would work, because it only works with winrar installed on the target system, so you could overcome this by installing winrar.. Sunil Actually it works great By placing unrar.exe into \$oem$\$$\system32 setup copies unrar.exe over to the %systemdrive%\windows\system32 during the installation And I have winrar 3.20 installing silently, with all the other apps I install after it has been extracted from apps.rar Ok, this would work because unrar.exe depends on winrar to do the actual decompressing. What I would like to know however, is how did you actually achieve the silent install of winrar.. Sunil