Vista/7 compatibility fix
http://www.pixel-fighter.com/modules.php?name=Forums&file=viewtopic&t=153
http://bfmods.com/viewtopic.php?f=54&t=1414#p9757
http://www.moddb.com/games/battlefield-1942/downloads/bf1942-compatibility-with-windows-vistawindows-7
http://www.pixel-fighter.com/modules.php?name=Forums&file=viewtopic&t=152
Widescreen
http://www.wsgf.org/dr/battlefield-1942
http://www.wsgf.org/forums/viewtopic.php?f=64&t=20092&start=10
http://www.widescreengaming.net/wiki/Battlefield_1942
http://www.bfmods.com/viewtopic.php?f=31&t=1653
Miscellaneous
Guide to install CD version
Punkbuster
If punkbuster is really an issue (ie: it's not automatically updated) somebody might want to upload an archive with required files here
And for god's sake, don't include anything that require evil UAC to be disabled.