Does anyone know free wokring GUI maker for DevCPP ???

Technically Dev-C++ is an IDE, and it has some kind of resource file editor, but it isn't much help. If you're trying to do Windows GUI, I used to use something called Wedit for making resource files. Try searching on Google or something for tutorials on windows GUI programming (or API, whatever), and they can usually suggest a good IDE for making .rc files. Or (what I recommend), you could learn GTK+(mm). Although the win32 version isn't all too stable, I find it the easiest to use (of those that I have found), and it's kind like the swing classes in Java. (Like 'add widget to other widget'-type commands.) And it's cross-platform, which is always good. Go to www.gtk.org for more info. They have links for the win32 GTK runtime and development libraries/DLLs, and tutorials. (GTK stands for the GIMP ToolKit.)