Uses E-MSBuild Starting from 1.3 Part of the documentation may be irrelevant. Please update me.

Special MSBuild Properties

List of special properties that available as MSBuild Properties.

name description sample of value availability
vsCommandEvent The version of the vsCommandEvent engine. 1.1.0.634 v1.1+
vsCE_LibPath Full path to library. C:\Users\reg\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\ubnc5xvo.xia\ v1.2+
vsCE_CommonPath Common path of library. C:\Users\reg\Documents\Visual Studio 2015\vsCommandEvent\ v1.2+
vsCE_WorkPath Working path for library. D:\prg\projects\Conari\Conari\ v1.2+

References