If anyone have some experience using Ultimate++ ( http://upp.sourceforge.net/index.html ) or WideStudio ( www.widestudio.org ), could please say if they are good.
I just found them on google.
Also found this article: http://www.codeproject.com/useritems/IntroUpp.asp
It looks like they are quite complete and mature, but I haven't heard much of them.
Is anyone using one of them?