I'm using the Windows 2003 Server OPK CD to install Windows to target machines. I've run the setup manager to generate WINBOM files and wrote it to floppy. I boot off the OPK CD and the WINBOM is read off the floppy and everything works great. Now, I need to incorporate a preinstall of Microsoft Storage Server. I have the OPK for this, but it's unclear to me how to get this to install during the GUI setup phase of Windows 2003 automatically. I copied the CD to my OPKTOOLS directory here: Directory of C:\OPKTools\cfgsets\storage server msi test\$OEM$\$1\stage The root of the CD would be the "stage" directory. Now I'm just trying to get the .MSI file to run during unattended setup. (I'll deal with an unattended textbased install of this after I know I can at least get it running). The files copy fine over to the target PC during textmode install, but the MSI errors with the following error (from WINBOM.LOG) Found Preinstall Section 'AppPreMSI01.Stage' for application 'Storage Server' Initiating MSI Attach of the 'Storage Server' application. ERROR: MSI failed with exit code:[1601] while attempting to attach the 'Storage Server' application. ERROR: Failed to Stage the 'Storage Server' application. My WINBOM.INI file contains this: [AppPreMSI01.Attach] InstallType=Attach StagePath=c:\stage SetupFile=SaSetup30.msi CmdLine= [AppPreMSI01.Detach] InstallType=Detach StagePath=c:\stage [AppPreMSI01.Stage] InstallType=Stage StagePath=c:\stage SourcePath=D: SetupFile=SaSetup30.msi [OemRunOnce] "Storage Server",AppPreMSI01.Stage,MSI Help PLEASE!!!!