"Check your MPQ data path" Error when using race changer

[bigapple89]

When I try using the race changer feature on Glitchy's amazing program, I get the error "Check your MPQ data path". I am able to do the item changing thing with no problem.. Not sure why this isn't working. Could it be because I am using Vista?

[Lyshani]

It sounds like a problem with your MPQ data path... did you by any chance... "Check your MPQ data path" ?

[Randie]

When you opened MES for the first time did you load your WoW data path in the thing where it says "load" or did you just Skip?