Quote Originally Posted by rikdol View Post
Literally the same command that is sent over the output is working for an .net application but isn't in my vb6 application.
It's not, at least acc. to your description.

Your statement, that it works with dot Crap specifically mentiones manufacturer's machine --> and not your own.

Maybe the "receiving" device has different endianness, and the manufacturer would know that.
It would be my first point of "debugging"