RLGUISET was replaced with RLAPPSET.RLAPPSET.exe can set the version as well as the GUID.
RLAPPSET AppObject [G] [V]
RLAPPSET .AppObject.OU.O /G 123456789-123456789-123456789-12
RLAPPSET .AppObject.OU.O /G 123456789-123456789-123456789-123456
RLAPPSET AppObject /G RickLaughinghouse.Rules.YadaYadaYada
RLAPPSET AppObject /V 12-11-1997
RLAPPSET AppObject /G 123456789-123456789-123456789-123456 /V 2
Future updates and additional documentation will be available at: www.geocities.com/rick_laughinghouse