As U explained U hav tried with /A switch 1) Give the path of Ur disc into Run Dialog Box such as G:\Setup.exe /A 2) Perform the Installtion Instruction (Fill the Name, Org, Product Key, Location for Installtion Source like C:\Office2000 etc....) and proceed next. 3) After the complete the installtion Process. goto C:\Office2000 and run setup.exe(make the ISO or DISC for backup) 4) the whole process going Unatteded and perform Admin installation to Ur desired location.