I have not used HarvestProject (or Heat.exe with a Project), but I use HarvestDirectory (which I prefer over calling heat.exe in a pre-build event), after calling a script which moves my project files to the directory. In this link <http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Automatically-harvest-files-in-VS-2013-td7597592.html#a7597597> I provided some details about using HarvestDirectory.
Also while you are asking about the use of -var with in the context of an environment variable, I think you are going to need to use a transform in that situation. My approach is a little different because I prefer to use named bindpaths, so in the following link I provided details on using !bindpath.MyVariable with the -var and using a transform which I posted here <http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Heat-source-path-td7599991.html#a7599995> . Looking at the heat chm, it only details using -var with either $(var.mydata) or !(wix.mydata), but as indicated in the above link I use a transform to change wix.mydata to bindpath.mydata. You could either use a bindpath (which is recommended over using preprocessor variables) or you could change the transform to achieve your goal of using evn.xxx. In both cases your approach is a little different and because I am tired I can't think of a more direct answer at this time. Maybe these posts will be helpful. -- View this message in context: http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Heat-not-replacing-variable-properly-tp7600673p7600674.html Sent from the wix-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
