ups...sorry, i have never join a forum before (lacked of experience) and i did not know that post the same thing in the other forum is not a good etiquette
..i won't do that again...
1. MySql already running in the XAMPP control Panel
2. no, there's another message: "connection for controluser as defined in your configuration is failed"..that's all
3. i use XAMPP 1.7.3 for windows
thanks for your help and your lesson of 25 forum etiquette
God Bless U