ThinBASIC it's a BASIC interpreter, you'll find it at http://www.thinbasic.com/ and the support forum at http://community.thinbasic.com/ Here is a simple GUI Hello World program: 
   Msgbox 0, "Hello World!", %MB_OK,"ThinBASIC"
and here a simple GUI Hello World program: 
   uses "Console" Console_WriteLine("Hello World!" + $CRLF) 


  Submitted by:  Roberto Bianchi