Diablo II CPU Bug Fix

The infinite loop cpu bug has been present for years but even at this point it hasn't been fixed by the game developers. The bug causes Diablo II to always use 100% of a single core on any computer, 50% for dual cores and about 25% for quad cores computer. Most players probably never noticed the glitch but our custom patch has been optimized a long time ago to reduce the effect of this bug and now we are able to offer you a permanent fix that shouldn't produce any drop in game performance. Shoutout to those who shared their knowledge.

Open your Diablo II game folder and replace the old D2Client.dll file with the one you just downloaded.
The original D2Client.dll is included inside of the archive in case you experience any issues and need to revert.

• Before
• After

Note: Only supports Diablo II version 1.13c!
Download: http://europebattle.net/d2/tools

Decent computers won't really see a notable difference in-game but you can check your Task Manager, however those having low end spec computers with a single core or dual cores will be able to run multiple game instances and keep the CPU load under control. Feel free to share your experience in this thread and make a detailed post if you encounter any performance issues after applying the patch.

 

@shadowhand mind recording a video? I'm using Windows 10 Pro (x64) myself and have no issues at all.
Like are you experiencing visually drop of frames thinking it will drop game performance or it's actually laggy? Below you can find some info taken from the official wiki page:

 

In terms of what?

 

No, @Stefansg. This fix only refers to the popular CPU bug that has an impact only for players using low-spec computers and wish to run multiple game instances without 100% CPU utilization. Those with decent computers won't tell the difference but why let Diablo II use 10%-25% cpu when it could use 1% or less instead. Neither the fix or the bug itself (without the fix) are not related to how many players are in a game at a time or someone's fps rates so it has no influence over that.

 

running on Windows 7 Home Premium SP1.

With my usual stuff running and 2 games open, i have a stead 5-7% CPU usage.
Also did some chaos runs with 2 games open.
Didn't notice any performance issues, drop in framrates etc.
Game is running smooth.

 

@Strutharald, location of the faulty code is different for all versions. We only fixed this bug for 1.13c patch because that's what we are using on our realm.
On the other hand, keep in mind that this bug exists since diablo2 was launched and vast majority of players never realized it was an actual bug.