Does lazarus...

[SirPoonga]

...support more than one version of mame?
Until my hack, I use to run 36final for asteroids.

[Howard_Casto]

yes, but the secondary version is crippled.  Simply take you mame listinfo.dat and extract the games you want to run on the old version.  Create a new dat called  Altmame.dat or whatever and paste those entries inside.  Now put a header file a the top similar to how you do for a regular clrmamepro dat file. Make sure that the name is NOT mame  now make a config file for whatever you named it.  As it isn't "mame" now some of the mame specific features now won't work, but for general launching it will work just fine.