What he is looking for is a way to combine 2 executable files. Not make an executable appear to be a jpeg or something. Yes it is possible. To do it in 9x, you have to use a certain type of program. For Nt, you can use that type of program, or you can piggy-back it useing OS specific commands.

I will not describe either one right now, becuse I don't know of any use other then to send a virus/trojan attached to a valid exe file.

cojunudo>
Hey, guys, please, don´t give me more anti-points, I wasn´t trying to flirt, honest )
umm, you alright there girl?