How to host svc in iis7

1. Add application in IIS7
2. Right click+switch to Features view
3. Double Click on MIME type
4. From Actions--->  click Add .svc and application/octetstream + Click OK
OR
(try from your side.)
1.) a. Cd %systemRoot%\Microsoft.Net\Framework\v3.0\Windows Communication Foundation\
b. ServiceModelReg.exe -i
c. ServiceModelReg.exe -r
then host it in IIS

http://blah.winsmarts.com/2008-4-Host_a_WCF_Service_in_IIS_7_-and-amp;_Windows_2008_-_The_right_way.aspx