support toolbox on windows

The way the load paths are set up will not work on windows. Also, there are possibly other issues that would need to be resolved before it will work. I believe travis only tests mac/linux, so we'd have to have another way to test for windows

Start by auditing how load paths are configured and reviewing the current Travis test coverage, which appears limited to macOS and Linux. Identify the Windows-specific blockers and a way to run the test suite on Windows; done means the toolbox works on Windows and its tests pass there.

Written by the indexing model from the issue text.