In order for the WhosOn Chat to work you need Microsoft .NET Framework 2 installed and ASP.NET enabled in IIS. If this is not done you may receive an error or a blank page when you try and launch the WhosOn Chat Window.

You can enable ASP.NET in the Add/Remove Windows Components option in your Windows Control Panel.

Alternatively, follow this procedure:

1. Open a Command prompt.

2. Change your directory to:

- For 32 bit systems: <WindowsDir>\Microsoft.NET\Framework\<version number>\

- For 64 bit systems: <WindowsDir>\Microsoft.NET\Framework64\<version number>\

3. Type aspnet_regiis.exe -i and press enter.

ASP.NET will then register with IIS. The WhosOn Chat window will now open correctly.