Using Internet Explorer to Check the IIS Configuration
You can use Microsoft® Internet Explorer to verify that you have configured the SQL Server CE Server Agent (Sscesa20.dll) correctly. In Internet Explorer, enter the URL for the SQL Server CE Agent (for example, http://myserver/sqlce/sscesa20.dll). If the SQL Server CE Server Agent is configured correctly, Internet Explorer displays the string: "SQL Server CE Server Agent".
You can also use Internet Explorer to verify that Microsoft Internet Information Services (IIS) security is working as you intended. If you configured IIS to require Basic authentication, Internet Explorer should prompt you for your user name and password before displaying a response. If you configured IIS to use Secure Sockets Layer (SSL) encryption, the URL must specify HTTPS rather than HTTP (for example, https://myserver/sqlce/sscesa20.dll).
When you use Internet Explorer to verify IIS security, you must close and reopen Internet Explorer each time you change any IIS security setting. Opening a new instance of Internet Explorer ensures that a new connection to IIS is established, rather than reusing an existing connection.