What does different Windows user name mean? What if I run multiple copies of WLP on different computers but under same Windows user name? Does it matter whether or not the Windows user name is domain user name?

QUOTE:
Is it possible to launch more than one copy of Wealth-Lab 5?
Generally, you don't need that because the built-in Workspaces function provides a more quick and convenient way to do what in the past required launching multiple copies of the application. Still the answer is yes - it is possible to run several copies of Wealth-Lab 5 under different Windows user names.

QUOTE:
What does different Windows user name mean?

Windows User accounts, i.e., different logins.

QUOTE:
What if I run multiple copies of WLP on different computers but under same Windows user name?

Not possible (unless you find a hack). But, you can open as many Workspaces as you wish, so there's no need to try to hack.

QUOTE:
Does it matter whether or not the Windows user name is domain user name?

afaik, no.

QUOTE:
Windows User accounts, i.e., different logins.

If Windows login user name is different, then WLP should work fine at the same time on different computers even if Fidelity account is the same (SSN/PIN)?

QUOTE:
you can open as many Workspaces as you wish, so there's no need to try to hack.

I'm building a fault tolerant treding system. So multiple workspace running on the same machine doesn't work for me.

If WLP is running on different computers you can [probably] log in with Fidelity with as many computers as you have. If there's a limit, Fidelity phone support should be able to tell you.

Probably I have to talk with Fidelity phone support but I just wanted to share with you an interesting finding.

Please could we kindly ask you to not share these findings openly? We have our share of pirates, and dissecting the logic of WL's authentication system could be a help to them. Thank you.