I think i've cracked it. I created 2 directorys to be copied to C:\ during unattended setup. Then at the end of the 1st runonceex it will copy another runonceex from one of the directories that will execute a silent install of office 2000 disc1 upon a restart, included in that runonceex is the code to restart the machine. After the restart it will install office 2000 disc1 silently, then copy the other runonceex from the other directory, which includes the code to run disc 2 setup silently, and restarts the machine. Then once its restarted again, Office installation disc 2 runs and restarts the machine for a 3rd and final time. Woop... now lets see if it works. I used start /wait C:\Install\symantec\NAVCE.MSI /passive /qn /norestart That seems to work.