Thanks. You don't understand my problem.
My Session working good on apcahe server. Same Session does not work on ISS5 Windows 2000 server.
I checked Save path permission properties. Everythings ok. I see all session file in this folder and open with notepad. Session variables ok. But when i open other page i can't see session variable value.
PS: My Configuration MySQL 323 PHP4.06 Windows 2000 & ISS5