• Vtiger Public License Version 1.1 VPL 1.1 (local copy for future reference)
• MPL 1.1 Annotated
• vtiger CRM 6.0 is distributed under VPL 1.2. The only diference is that vtiger protects it's trademark and logo.
• GPL-Incompatible Free Software Licenses
  • it has some complex restrictions that make it incompatible with the GNU GPL. That is, a module covered by the GPL and a module covered by the MPL cannot legally be linked together. We urge you not to use the MPL 1.1 for this reason.
  • However, MPL 1.1 has a provision (section 13) that allows a program (or parts of it) to offer a choice of another license as well. If part of a program allows the GNU GPL as an alternate choice, or any other GPL-compatible license as an alternate choice, that part of the program has a GPL-compatible license.
• Combining MPL-Licensed files with an (L)GPL-Licensed Project: Guidelines for Developers
  • Unmodified MPL-licensed Files - MPL-only In the simplest case, the developer combines unmodified MPL-licensed files into a project with (L)GPL-licensed files to create a Larger Work, and seeks to distribute the resulting combination under the terms of the (L)GPL.
  • In this case, Section 3.3 of the MPL permits the individual files to be distributed as part of the Larger Work, with no further changes required. The developer may simply leave the file untouched, with all notices intact.
• MPL / GPL Incompatibility
• OSI

vpl1.1_definitions.odg