No, it won't. There's a specific algorithm that calculates the hexadecimal code and the signature.
You should probably use Discovery Launchpad for all your account-creation and managing needs. Not to mention it has options for starting Freelancer with specific command-line options for Discovery easily, without messing with shortcurts and stuff. And a superior exporting option that uses standard xml syntax.
Just remember to set it to run with Administrator privileges from the compatibility options if on Vista/7.
