For XP install:
Extract the .msi from the vendor provided setup.exe
Pre-Req: MS Visual C++ 2010 x86 Redist.
Run the extracted .msi with the following parameter
rpchostname=YOUR HOST NAME rpcport=YOUR PORT (/qb, /qb! or /qn) /NORESTART /ALLUSERS=1.
These changes can be embeded into mst also.
Note: If "Pre-Req: MS Visual C++ 2010 x86 Redist" is not installed on XP machine, this install will not work right. It'll keep giving you and error saying that several .dll files are not registered.
For WIN 7:
Follow the same as XP. Unless your core image already has the "Pre-Req: MS Visual C++ 2010 x86 Redist" installed, then just install the msi with the host and port info embeded in the mst.