While WinKawaks 1.65 is excellent for CPS-1/2 and Neo-Geo, consider these modern alternatives if you need more systems:
WinKawaks itself is legal – it’s emulation software. However, downloading full ROM sets of commercial games occupies a gray area. Most of these games are no longer sold by the original publishers (Capcom, SNK), and the abandonware community argues for preservation. download winkawaks 165 full rom set mega portable