i guess u can but after u made your cd with xpcreate... this is what slipstreamer does DOSNET.INF: To the bottom of dosnet.inf OR before the first [Files] section: [OptionalSrcDirs] svcpack To the first [Files] section: d1,WMP10.CAB d1,WMP10SP2.INF TXTSETUP.SIF: To the first [SourceDisksFiles] section: WMP10.CAB = 100,,,,,,_x,,3,3 WMP10SP2.INF = 100,,,,,,,20,0,0 SYSOC.INF: it adds the following to the !!!LAST!!! [Components] section BELOW the last entry: WMP10Files=ocgen.dll,OcEntry,WMP10SP2.INF,HIDE,7 SVCPACK.INF Add the following to the [ProductCatalogsToInstall] section of SVCPACK.INF codecs10.cat DRM10.cat MPCD10.cat MPPRE10.cat MPSTUB10.cat WMDM10.cat WMFSDK10.cat WMP10.cat WMSET10.cat WPD10.cat