http://www.msgpluslive.net/help/faq/general/#send-free
Can I send Messenger Plus! Live to my contacts? Is it free?
Yes, you are allowed to send Messenger Plus! to your contacts as the software is entirely free. Messenger Plus! is a freeware, which means that you can redistribute it to whoever you want, directly or indirectly, as long as you distribute the original setup package as downloaded from this web site (and not some of its files separately). If you want to promote the software on your web page,
banners can be found here. If you want to include the software in a magazine or a public CD, you are also free to do so without asking for my permission, although, I'd like to know about it if possible (just notify me by making a post on the forum).
In short: you may not modify the setup of Plus! to include your script and sell it.
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