Pre-patching Doom 3 help

[OliverMaltby]

I've isolated the new files that were included in the patch - now my problem is to get Installshield to include these new files with the install. I've edited the "file" table in the msi with Orca to include these new files, but it still won't copy the files across from the CD. At the start I would get an error mentioning the new files and the installation would quit, but after changing the entries slightly (of the new files) to what I would assume to be correct, the installation itself works perfectly. Could anyone help me on this?