It's still irrelevant anyway - if, as you say, mIRC doesn't understand RESERVEDMODES then it's pointless having it there purely for this exercise. The fact still remains that there is no valid explanation as to why someone would expect performance from a mode that has no documented function and is indeed marked N/A in the HelpServ reference. So why is +y even being used and who really cares what it does? It's been there for, like 6 - 7 years and this is the first time it's ever raised a mention. grin