IIS Unattended install

Folks,

I think I've hit a brick wall on the following. I'm trying to set up an unattended installation of IIS 5.1 onto

win xp sp1 machines. The idea being that the user should not need to get involved at all so I have the following

cmd line to start it off:

sysocmgr.exe /i:sysoc.inf /u:c:\unattend.txt /q

However the thing that's getting me stumped is that I can't get the action to pick up the source from a server

location. I persistently get the prompt for D:\i386.

Following on from some information that I have found on another forum article I have seen references to changing the

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\SourcePath key to an alternative location. Now I have done

this and pointed to a copy of the XP cd on my local drive for a trial however it's not working, I still get the

prompt to insert the XP prof SP1 disk into the CD drive.

Any thoughts on this one greatly appreciated.

Regards,

Magoo_78