Games : How can I distinguish between an official or unofficial patch? [on hold]

I recently dug out my CD for CM2 97/98 but I am missing the official patch (version 2.93).

The patch was originally available from the game developer but they have since split from the original franchise (i.e. now developing Football Manager). I cannot see the patch on their website.

I have checked several websites but have encountered one of these problems:

1. When finding links to download the 2.93 patch from historic fan sites the patch is no longer available (no sure way of downloading the patch as it was)


2. Obscure "CM2 97/97" patches are turning up as unofficial update for teams/players mainly regarding approximately the 2011/12 season (this will vary depending on the site)


3. Several abandonware sites are giving me copies of the full game complete with additional editors/tools etc - and I cannot confirm whether this is a patched copy of the game

What I want is the official 2.93 patch, which I believe was a zip file or an exe named something like "patchzip". The file was pretty small, maybe less than 10MB. It patches the CM exe file, possibly the editor, and updates around 3 game data files.

In the absence of an explicit download to the official patch/update is there a sure-fire way of determining if an installation has:

1. been patched with the official update?


2. not seen any custom edits (new players added beyond the "vanilla" update?