The "-legacy" option does not appear to work with the "-version" option.

[mistachkin]

Using the "-legacy" and "-version" options together does not work. It always outputs all legacy versions. Either these options should actually work together -OR- using them together should produce an error.

[heaths]

-latest and -version do work together but only if you have VS installed because the parser for the version range is implemented by the COM API that the VS installer installs. -latest works by sorting the legacy versions as seen in https://github.com/Microsoft/vswhere/blob/develop/src/vswhere.lib/InstanceSelector.cpp#L145-L156.

At this time, I have no plans to duplicating the version range parsing logic in vswhere to handle when the COM API is not installed. What scenario are you trying to support that you need to specify a version range with only legacy products installed?

[mistachkin]

I was trying to query for only Visual Studio 2015 using "-version 14.0"; instead it returned 2010 to 2015. Perhaps you could add a small check to see if the COM API is installed and disallow -version with -legacy in that case?