PlayOn for Windows Home Server and Windows Server 2003

PlayOn generally works great on WHS and Windows Server 2003. You may, however, need to disable "Internet Explorer Enhanced Security Configuration". See below for specific instructions.

Disabling "Internet Explorer Enhanced Security Configuration"

1. Click Start > Control Panel > Add/Remove Programs.
2. Click Add/Remove Windows Components.
3. After a few seconds a window will pop-up. Click the check mark next to Internet Explorer Enhanced Security Configuration (to make it unchecked). If you'd like to only disable it for Administrators or only for Users you can click Details and do so.
4. Press Next, let it finish, and it's complete. Verify that it's disabled by opening Internet Explorer. You should see a message: "Caution: Internet Explorer Enhanced Security Configuration is not enabled".

Reference: www.visualwin.com