is there any software that allows modifying ( replacing files in a win32 cabinet self-extractor )?

[cov3rt]

i was wondering if there are any programs that allow replacing files from a win32 cabinet self-extractor package so that it installs using the newer replaced files, rather than what it originally uses. i'm trying to slipstream the package in nlite, but it contains some buggy files, and i wanted to replace those so that it can work the way it originally does but with the right files. 

[Ximonite]

I don't know of any software to modify packages, but you could extract the files from the package, add the newer files, and create a new package with the updated files.

Here is a link to RAX SFXCAB, which is a SFXCAB creation tool that contains parts of the Microsoft SFXCAB creation tool, which hasn't been released to the public.