Opportunity: apt-get like program on windows

As more and more open source software runs well on windows (something which has not always been that way to my great frustration), becomes more cross platform (e.g. xchat, sodipodi, gaim, openoffice ), i found myself needing an apt-get equivalent on windows.

Usually windows versions of OSS are either file archives to be dumped into their install directory, or wrapped in a (big) windows installer. I searched for a windows version for apt-get, but got not much to work with / from.

I wonder why, can't be that difficult. Shame i have no credit left on my time account.