So, a what compiler are you using? chances are you already have windowsh if you are working with a windows compiler if not you can download the windows platform sdk -- however it is getting harder and harder to get a hold if this (i think all that is directly available from msdn is the windows 7 kit). Download windowsh c++. Free download page for project ascii windows toolkit for dos's windowsha library in c for dos that allows you to create gui windows and widgets using ascii characters in text mode.
download windows.h c++