Well Of Course There Were Bugs! What Did You Expect! Fixed in 1.0a : þ Loader Of EXE was not 8086 compatible , I forgot the JCXZ instruction.... So I replaced it with OR CX,CX & JZ (oh... what do you care...) Meaning : now it should be 8086 compatible þ In combination with some exe/com compressors , GA could produce defective programs. Fixed now. þ Some other little things.... Fixed in 1.0b : þ Just some details... BTW Use GA on a WindowsEXE and get the 'NOT ValidEXE' msg (now you know...) BTW : This is only a BUGFIX meaning registered users can use their old keys to register this BUGFIX version... (ver 1.0)