Hmm, interesting. Here are two others I found once.. the first one is probably the 16-bit equivalent of yours, and the second looks less versatile, as I don't know if/where you can add the numerical code. Do you know of any documentation on said codes? rundll setupx.dll,InstallHinfSection DefaultInstall 128 filename.inf rundll32 advpack.dll,LaunchINFSection filename.inf, DefaultInstall Edit: nevermind, I found it: http://msdn2.microsoft.com/En-US/library/aa376957.aspx