The PreBuildEvent commands in wren.vcxproj for Release|Win32, Release|x64, and Debug|x64 configurations are updated to use the new `update_deps.py` script for dependency management and `build_libuv.py` for building, replacing the previous `libuv.py download` and `libuv.py build` invocations.
Building on windows
Building the wren project requires python2 to available in the path as python, in order to download and build the libuv dependency. The download and build of libuv is done as a pre-build step by the solution.