OldVersion.com

Upgrading software to a newer version can always be a good thing. Your computer may not be compatible with the new version, or  the new version is bloated, or all the options you liked are no longer available, or you favorite tool turned from freeware to shareware and it now contains adware. OldVersion is a website where you can find old versions of various programs since 2001. Currently they have over 190 various software archived with various versions.

Homepage: http://www.oldversion.com