Need very old archived version of Code Composer (not CC Studio)

I am trying to find a very old version of Code Composer, not Code Composer Studio. The Help/About screen says "Code Composer/Version 4.2/Copyright 1994-2000 Texas Instruments).

This may seem an odd request, but it is not and I'll explain why. The customer has a medical device (regulated environment) that was developed about 13 years ago using a 2407 processor, and has lost the ability to re-create the hex files that are being flashed into the device. This is an FDA requirement, so we can't just willy-nilly use a different compiler. First we have to recreate the original output and prove that we have the right source files, then we can start the process of migrating to a more modern processor and upgraded compiler environment.

But first, we need that old compiler.

Any ideas?

Thanks!