As of version 2.2.0, LyX no longer works out of the box on Windows Vista, probably because of some default settings in MSVC2015.
This patch fixes that by forcing a PSAPI version that is compatible with Vista as well as later versions of Windows. Tested on master and 2.2.x branches, with Vista and 8.1.
0001-Restore-Windows-Vista-compatibility-by-using-PSAPI-version-1.patch
Description: 0001-Restore-Windows-Vista-compatibility-by-using-PSAPI-version-1.patch