NT4 and Active Desktop

Two ways. Uninstall IE5 and install IE4.x with Active Desktop and then upgrade to IE5.

Second choice is use the IEAK for IE5 in Corporate Administrator license to add the Active Desktop component.

See Q article Q165695 in Technet (www.microsoft.com/technet) for more info.

There are basicly two choices when it comes to active desktop. Im not sure if your going to like my answer, but you asked. Short answer is, there is no way to install Active desktop with some magical tool or setup that Microsoft has made available. Active Desktop was not included with regular builds after 4.x When they started with the 5.x browsers they left it out for performance and some security reasons. You do have another option though, if your really want to use the Active Desktop with the 5.x versions. You can download the IEAK Internet Explorer Administrators Kit and create a custom build for your systems, in the kit it gives you the option of including active desktop. Then it would be a matter of reinstalling 5.x on your stations.You also have another option that is more painful:

If you have already installed Internet Explorer 5 and would like to install the Windows Desktop Update, carry out the following steps:
1. Uninstall Internet Explorer 5.
2. If Internet Explorer 4.01 SP1 is not already installed on your computer, install it.
3. Install the Windows Desktop Update.
4. Reinstall Internet Explorer 5.

I have found a couple of refferences to this from Microsoft, Check Out:

he Mole #14: Technical Answers from Inside Microsoft - Upgrades & Active Desktops, Proxy Server, DCHP Scope

Internet Explorer 5.0 Resouce Kit

You can download the IEAK from:

http://www.microsoft.com/windows/ieak/en/default.asp

Pete