Pass VAGRANTAPPDIR
instead of INSTALLDIR
.
It's admirable that they created an MSI but they should know that the default installation should be [ProgramFilesFolder]Company\Product not [WindowsVolume]Company\Product. (Actually they do know since they did a cute little Type 51 SETPROPERTY WINDOWSVOLUME = [WindowsVolume] so they could author the directory table in a way to get past the built in ICE validation unit tests that warn developers to not do this very thing. #FAIL
Also the use of unusual directory keys like VAGRANTAPPDIR only causes confusion. Stick with INSTALLDIR, INSTALLLOCATION or TARGETDIR for InstallShield, VDPROJ and WiX projects respectively.