Quote Originally Posted by Tafferboy
Look under C:\Documents and Settings\(your user account) or All Users\Application Data. See a folder called "Securom" on it?

Open the "Securom" folder. Don't be too surprised if you see...nothing. There are files in there that have been installed by Securom, but because they have intentionally been made to contain character errors, Windows explorer cannot recognize them and so there is no way to delete them.
Thanks now I see it. The file names are garbled but they are still visible in vista. The date corresponds to the day I installed Kingdoms. If you are interested here is the readme file that's there as well:
Spoiler Alert, click show to read: 

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PLEASE DO NOT DELETE THE FILES IN THIS FOLDER BECAUSE YOU MIGHT LOOSE ESSENTIAL DIGITAL RIGHTS.
READ BELOW
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Technical Information for the PC Administrator:

The files securom_v7_01.dat and securom_v7_01.bak have been created during the installation of a SecuROM protected application.
It guarantees more user convenience because the original disc does not have to be in the local drive at all times anymore.
It is necessary for copy protected CDs, demo versions and protected software downloaded from the Internet.
The file contains your licences for all products which are SecuROM protected, therefore it will not be deleted automatically.

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PLEASE DO NOT DELETE THE FILE BECAUSE YOU MIGHT LOOSE ESSENTIAL DIGITAL RIGHTS.
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The information contained in securom_v7_01.dat will not be transferred to any other computer without your permission.

This security system is connected with a MS Windows Service called "SecuROM User Access Service".
This module is started automatically when launching a protected application if the user is logged in with Windows administrator rights.
In case users do not have administrator rights we recommend to keep it running.

See www.securom.com for further information

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However these seem to be just data files, not software. I renamed this folder, installed the crack and the game appears to be working without any new services starting up, so its probably safe to delete this folder.