Windows build has been restored. AMXX is now using v140_xp toolset (VS 2015) with an ugly fix due to some lib (like mysqlclient.lib) using a function which is no more available. Please test it and let me know if you have issues.
On a side-note, this new toolset fixes a crash with format_time native. It relies on the C strftime functionand it would crash if you were using the specifier in yellow (because not available in previous toolset).