I want to give you some information about gtk, glib, gio, gobject on windows.
Currently I use Windows 7 and I programm somes software with gtk+3.6.1 all things work perfectly so gtk+2 is for me an old release of gtk+ on Windows.
There are some good informations on this website:
you can install this gtk+ release for your own test:
you can ask some question directly to the person who manage this website and made all of the gtk+ release in this site on:
Thank for your attention.