Perhaps im doing it wrong.

i opened the exe file in the rich text box and i got this "MZÿÿ¸@¸º ´ Í!¸
LÍ!This program cannot be run in DOS mode.

$ŠùÛËë—ˆËë—ˆËë —ˆH÷™ˆÊë—ˆ¢ôžˆÊ ë—ˆ"ôšˆÊë—ˆRich Ëë—ˆPEL
žApIà

 T0@
...." weird, most of the charaters are not displayed. Anyway i use the following code to do it(only code i know to open files):
...

Can any one tell me how to open .exe files in binary so i can edit the in vb. I know you "can't" really edit it, but i am trying to make a program that randomly mutates an .exe file's binary code. i want just need to know how you open it so my program can do what i designed it to do (randomly alter some of the binary code) and how to save the binary back into the similar .exe format. lol i can almost imagine my mutated exe files, im sure...