legal use of ISIS

[sn0op]

Are developers allowed to use nsis for their commercial programs ?

[kichik]

Yes, you are allowed to use it for, or in, commercial applications:

code:
Copyright (C) 1999-2003 Nullsoft, Inc.



This software is provided 'as-is', without any express or implied

warranty.  In no event will the authors be held liable for any damages

arising from the use of this software.



Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:



1. The origin of this software must not be misrepresented; you must not

   claim that you wrote the original software. If you use this software

   in a product, an acknowledgment in the product documentation would be

   appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

   misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

[virtlink]

If you wish, you could even be listed on this list.
Altough I think that this list hasn't changed in the past decade...

[virtlink]

B.t.w. that's what I like about NSIS: it's free, you get the source code, and you may do almost everything with it. Could it be better?