please look this http://www.microsoft.com/technet/prodtechn...loy/wmsiis.mspx and more this Click OK to close all dialog boxes. Click Start, Control Panel, Services and stop the following services: • Windows Media Unicast Service • World Wide Web Publishing Service 12. Click Start, Run, and then type in "regedit". Click OK. 13. Open HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services and click nsunicast. 14. Double-click DependOnService. 15. Click just to the right of the text and backspace once to erase the last dot from that line, then enter "W3SVC". 16. Click on the left (Hex) side of the form at the end of the last line (to the right of the number 43) and enter four zeros. The entry should look like this: 0000 52 50 43 53 53 00 4E 54RPCSS.NT 0008 4C 4D 53 53 59 00 57 33 LMSSP.W3 0010 53 56 43 00 00 SVC.. 17. Click OK to close the [NAME] dialog box, then exit the Registry Editor window. 18. Reboot the computer. now I can't find Windows Media Unicast Service in services to be stop it ?? and I can't find nsunicast. in " regedit " ?? What can I do for complete this steps ??? I have windows server 2003 standard edition.