A Delphi component, which implements rectangular TGraphicControl descendant with a behavior of a sizeable form. Source code should be compatible with versions 2, 3, 4 and 5, but it was tested and compiled in version 5. May be, that it can be used in version 1.
Source code can be easily modified to implement MDI Apps with more then one MDIForm, if you don't require forms for MDI Apps
Download source code here.