用網頁申請憑證發生錯誤 No certificate templates could be found.

Windows 2008 CA.
Error message on requesting Certificate from Web: No certificate templates could be found.

Solution:
1. Create an account (Ex: CA_admin) and to to group Cert Publishers. (Add to group Domain Admin if not work)
2. Open IIS manager. Create new Application Pool (Ex: cert). Change Identity of this Pool to domain\CA_admin.

3. Change Application Pool of CertSrv to this new Pool.

Reference:
http://technet.microsoft.com/en-us/library/cc731256(WS.10).aspx