Thanks for this great program. However, I have some questions about it:
Is it possible to make it change the ID before actually selecting your character? I don't know where the client stores it and how many times it sends it to the server, but if it does send it between selecting the character and being able to change the ID, then it can show up in the server log that the same character had different ID's without logging out.
Second, maybe "something random" is not a good idea, because that will look like the account is logging in from a random different computer every single time. Normally you can't distinguish which client is going to log in which account, but if you launch them with Sandboxie, you have the option to show the name of your sandbox in the window title, which makes them distinguishable (very useful if you run too many clients and they keep switching places on your taskbar).