In attempting to slipstream SP2 into an original copy of Office 2003, I \nhave encountered an error. Main2spff.msp can be handled properly, but \nthe next file, OWC11sp2.msp fails and results in an an error message\n"This installation package could not be opened. Verify that the package \nexists and that you can access it, or contact the application vendor to \nverify that this is a valid Windows Installer package."\nWhereby the SP2 files have been extracted to d:\office_sp2, and the \nOffice CD files have been installed to d:\Office,\nmsiexec /p D:\Office_SP2\OWC11SP2ff.msp /a D:\Office\OWC11.MSI \nshortfilenames=true /qb\n\nresults in the above error. Anyone have an idea where the glitch is? The \nOWC file is indeed there and can be executed. Using WXPsp2 if it matters.