thanks glitzi85
I have found the mysql_start.bat but there is a problem:
mysql is trying to start
please wait
Mysql is starting with mysql\bin\my.cnf <console>
081020 19:47:37 InnoDB: Operating system error number 32 in a file operation.
InnoDB: the error means that another program is using InnoDB's files.
InnoDB: this might be a backup or antivirus software or another instance
InnoDb:of Mysql. Please close it to get rid of this error.
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My so is windows vista home premium, the avira antivir is not working, and i don't know what is hapening.
The xampp version is the lastest 1.6.8 for win 32.