Warlords III: Darklords Rising
Game does not require installation and is already patched to the version 1.02.
This package includes K4 heroes/spells and Stormheim units, which are commonly used for PBEM / Online games.
A bunch of scenarios were added as well.
To run the game under Windows XP or Windows 7, you have to use a shortcut to Darklords.exe with wincursor parameter
(create shortcut, right-click it, go to properties, and change the target to "[path to your Darklords folder]\Darklord.exe" -wincursor).
If this won't help, try virtual machine. VirtualBox is recommended.