Hi, my little exercise was to update TypeScript in VS2015 to the latest from the master branch in git, I wanted abstract classes. It's really not that hard, just not very much documentation on it. In this guide, you will want to replace "c:\development\" with the path you clone the TypeScript git repository into. I'm showing how to do this on a 64-bit system, so if you are using a 32-bit system change Program Files (x86) to just Program Files. First step is compiling TypeScript, here's a quick