He is indeed correct in stating that The Adventure Company is telling
users to remove that specific hotfix:
http://www.adventurecompanygames.com/tac/support/sherlock.html
Excerpt from the above page:
<begin excerpt>
3: I have installed the game and when I launch it, it takes me back to
my desktop. The game will not run.
A3: The problem you are experiencing is related to a Windows XP update
that Microsoft released October 15th. Hot Fix KB824141of this update
for Windows XP leads to display problems in a few of our games
rendering them unplayable. The immediate solution is to remove the Hot
Fix.
To Uninstall the Hot Fix:
1. Open the Start Menu
2. Go to Control Panels
3. Open Add/Remove Programs
4. Select Windows XP Hot Fix KB824141
5. Click Remove
6. Follow the prompts to remove the Hot Fix. If you get any error
message regarding win32 or user32 getting corrupted you must stop
immediately and click on the start menu button -> all programs ->
accessories -> system tools -> system restore -> restore system to an
earlier configuration.
Removing the Hot Fix should not place most users at undue risk. Per
the Security Bulletin, "An attacker must have valid logon credentials
to exploit the vulnerability. The vulnerability can not be exploited
remotely."
<end excerpt>
hth,
JM