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Mod Conflict Detector [Update 03/03/2018]

by DmitryMalfatto Posted 6th Aug 2015 at 1:23 AM - Updated 3rd Mar 2018 at 2:01 PM by DmitryMalfatto
995 Comments / replies (Who?) - 12 Feedback Posts, 13 Thanks Posts
Picked Upload! This is a picked upload! It showcases some of the best talent and creativity available on MTS and in the community.
Update 03/03/2018 (2.2.300)
Hi friends! I apologize for my absence. Unfortunately I will not develop MCD.I don't have enough time and energy. I have to work hard to make money for moving to another city.
A small update with the removal of ads and networking features will be released soon. Also will be laid out the source code of the program. Anyone will be able to continue the development of MCD.

I hope someone may be able to continue to develop and make MCD the best program for The Sims 4,

Sincerely, Dmitry Tkachev. Your Russian friend

You can always contact me in direct Instagram: @d_._v_._k[/list]
Update 23/07/2017 (2.2.100) More...
You were waiting for so long, and finally, Mod Conflict Detector has got a viewer! Now you can browse the content of your *.package files.
  • First Launch: During the first launch of the program you'll be advised to tune program settings (choose game dir, default scan dir, etc.)
  • Advanced User Mode: if you're a beginner, you can hide and don't use a number of features that are for advanced users only.
  • The game dir will be detected automatically now.
  • Duplicate search has been improved.
  • Some changes in pop-up menu.
  • Solved some problems with the settings migration (from one version of the program to another).
  • Starting with this version, the program will delete temporary files of version 1.x.
  • Errors fixed, performance improved.

Update 18/06/2017 (2.1.6378.24471) More...
  • Feature added: mod activation/deactivation. Please note: if you have any mods deactivated in 1.x version of the program, they will be converted after the first launch of 2.1 and will no longer be supported by 1.x (1.x *.disable => 2.1 *.disabled).
  • Notifications center updated.
  • File analysis runs faster now.
  • Some errors fixed.

Update 18/06/2017 (2.0.6368.26806) More...
One and a half years sure did fly fast, don't you agree? Sorry for being absent, I was helping Putin to train his bears.
Introducing Mod Conflict Detector 2.0, improved as follows:
  • new interface
  • new CFG editor
  • new filters added
  • improved performance and stability
  • and many more
The program is currently under development, but it's already far better than the previous version. And it's almost bug-free!

Windows XP is not supported anymore.
Thanks you very much for 2 million downloads! Stay tuned for the next update, sometime in 2024 ))

Update 10/22/2016 ( More...
  • 40% reduction in RAM usage
  • Chinese translations updated
  • Now you can open .CFG files with Mod Conflict Detector (it won't interfere with the main work of the program)

Update 09/10/2015 ( More...
  • The program is completely switched to .NET Framework 4.0 Ñlient profile
  • Loading errors fixed
  • Errors of "Find Duplicates Only" mode fixed
  • New checkup algorhythm is 85% faster, albeit uses additional memory
  • For now on, no less than 1 Gb RAM is required for the program to run normally
  • File colors customization is improved (sadly, the previously created settings would not be saved)
  • More convenient access to panels
  • Dialog box errors fixed

Update 01/10/2015 ( More...
  • Fixed some errors; performance improved.

Update 31/08/2015 ( More...
  • Added online features: 'Send error report' & 'Check for updates'. Now you won't miss the next version of the program!
  • Fixed 'File' mode issues.
  • Fixed the issue when, if 'Find duplicates' checkbox was ticked off, some files were simply left unchecked.
  • Added feature: 'Customize file colors' (Options > Settings > Colors).
  • You can disable any file (almost; see below), but only disabled files can be enabled.
  • The game file cannot be disabled.
  • Performance improved, a bit.
  • CPU loading is more balanced now.
  • New filters for 'Mod Type' & 'Conflicts' columns.
  • Thanks to Aero&Win10 style, the program will now look the same on any supported OS (WinXP still making the list).
  • Various tweaks and improvements; old errors fixed, some brand new ones were made.

Update 19/08/2015 (
  • "File" mode added
  • .CFG-file editor added
  • French localization updated
  • Some errors fixed
  • Added command line options: -Language:xx-XX, -NewProcess, -NoBlockingGame

Update 09/08/2015 (
  • Fixed some errors
  • Improved performance
  • Added "Files" analysis mode
  • Other tweaks & fixes
  • New localizations: Chinese (zh-CN, zh-TW), Spanish (es-ES)

NOTE: Please extract all files from the archive into a folder before launching the program! To work correctly, the program needs not only .exe file, but all the provided .dll libraries as well.

Hi, my name is DmitryMalfatto. I'm from Russia.
Here's my project, Mod Conflict Detector for The Sims 4. It's a powerful GUI tool for detecting and solving mod conflicts in the game. Allows you to get rid of trouble-making mods, empty mods, mods for another games, or technically-not-even-mods, that got in the Mods folder by mistake. I've been developing this program since February 2015, and now it's finally available not only in Russian, but in English as well!

Main Features:
  • Detect non-TS4 files;
  • Detect stray files (not *.package, *.zip et al, but something that doesn't belong in your Mods folder);
  • Disable (particular) mods;
  • Open file in s4pi;
  • Show file in folder;
  • Delete file(s) straight from the program;
  • Search for duplicate mods;
  • Analyse files (to find out exactly in what way they modify the game);
  • Copy conflicting ResourceKeys.

System Requirements:
  • Operating system: Vista, 7, 8, 8.1, 10*;
  • RAM: 1 GB
  • .NET Framework 4.6
* RT, Phone and Mobile editions are not supported

Additional Credits:
A big thanks and a special mention goes to:
  • adamhathcock for SharpCompress library;
  • creators of Microsoft.Windows.Shell.dll library;
  • creators of s4pi for the inspiration;
  • KuriXarya for the very idea of the program & help with Russian grammar;
  • Petr54 for the testing & ideas on how to improve the program;
  • Postoyalec [ToDoAbout on MTS] for the English translation.

If you want to translate the program into another language, contact me at [email protected]

Blog program in Russian
Forum topic in Russian

Operating System:
      Windows: Windows XP, Windows Vista, Windows 7, etc
Utility Type:
      Miscellaneous: Tools which do not fit into the above categories.
Plugin Type:
      Not Applicable: Standalone tools

You must have the expansion or stuff packs listed below installed to use this custom content. Please see the post text for any exceptions.

Key: - File was updated after upload was posted
Filename - Tip: You can click the magnifying glass to see the archive contents Size Downloads Date

Size: 3.01 MB · Downloads: 956,262 · 3rd Mar 2018
3.01 MB 956,262 3rd Mar 2018

Size: 41.1 KB · Downloads: 368,631 · 23rd Jul 2017
41.1 KB 368,631 23rd Jul 2017 | If you use Windows XP

Size: 863.6 KB · Downloads: 950,099 · 18th Jun 2017
863.6 KB 950,099 18th Jun 2017
Don't forget to Thank the creator after downloading! Use the Thanks button located above the screenshots above.
Basic Download and Install Instructions:
1. Download: Click the File tab to see the download link. Click the link to save the .rar or .zip file(s) to your computer.
2. Extract: Use WinRAR (Windows) to extract the file(s) from the .rar or .zip file(s).
3. Cut and paste the file(s) into your Mods folder
  • Windows XP: Documents and Settings\(Current User Account)\My Documents\Electronic Arts\The Sims 4\Mods\
  • Windows Vista/7/8/8.1: Users\(Current User Account)\Documents\Electronic Arts\The Sims 4\Mods\
Need more information?
  • Anyone can use both .rar and .zip files easily! On Windows, use WinRAR.
  • If you don't have a Mods folder, just make one.
995 Comments / Replies (Who?) - 538 Feedback Posts, 419 Thanks Posts
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Test Subject
Original Poster
#26 Old 6th Aug 2015 at 10:35 AM
Originally Posted by monksims
Wow! Very useful helping app! Thanks!

But I get exception every time when I delete or disable one or more packages.
Also, would it be possible to flag duplicates and conflicts OK so the checker would report them as ready/okay/"checked OK"?

Do you have a window with exception code? If yes, send me the code in the mail.
Test Subject
#27 Old 6th Aug 2015 at 11:05 AM
Can You Make An Mac Version? Please MAC Users Exists TOOO!
Test Subject
#28 Old 6th Aug 2015 at 11:15 AM
It's showing a lot of files which I know work in the sims 4 as sims 3 files, and there's no way of multiple selecting "this is a sims 4 file". Would make things easier if that was a multi select option
Test Subject
Original Poster
#29 Old 6th Aug 2015 at 11:24 AM
Originally Posted by ranrancurry
Can You Make An Mac Version? Please MAC Users Exists TOOO!

I already answered. I'm not familiar with the MAC OS. I'll try to find someone who knows the Mac OS X and could make port. I will not promise anything.
Test Subject
#30 Old 6th Aug 2015 at 12:24 PM
Thank you for this. I really needed it.
Lab Assistant
#31 Old 6th Aug 2015 at 12:51 PM
Doesn't work for me, just keeps crashing. whenever I hit "scan"
Test Subject
Original Poster
#32 Old 6th Aug 2015 at 12:54 PM
Originally Posted by Miss_Ineffable
Doesn't work for me, just keeps crashing. whenever I hit "scan"

Hi, Do you have a window with exception code? If yes, send me the code in the mail.
Test Subject
#33 Old 6th Aug 2015 at 12:57 PM
I would love to use this but whenever I try to open it, it keeps shutting down and I don't know why..
#34 Old 6th Aug 2015 at 1:03 PM
Thank you so much for this! :D I have been having an issue with some mods and have not found the issue yet...the majority of the female sims in my game are bald! :( Hopefully this will show me the issue! Thanks again! :D
Test Subject
#35 Old 6th Aug 2015 at 1:20 PM
Thank you for this tool. It is really useful and works like a champ!
Test Subject
#36 Old 6th Aug 2015 at 1:37 PM
Thank you so much for this!!
Lab Assistant
#37 Old 6th Aug 2015 at 1:41 PM Last edited by Miss_Ineffable : 6th Aug 2015 at 2:30 PM.
Originally Posted by DmitryMalfatto
Hi, Do you have a window with exception code? If yes, send me the code in the mail.

It never showed one. I just tried again and it did show one but I couldn't even click on it. I keep trying but it doesn't give one again.

*edit: I finally received a code again, the issue was a creation of my own. I have no idea why or how that's even possible but for others, if you have this, Tumblr Randoms, please delete it and if any other creation of mine conflict with this for you, please let me know.
Test Subject
#38 Old 6th Aug 2015 at 2:01 PM
Thank You!!!
Lab Assistant
#39 Old 6th Aug 2015 at 2:15 PM
This tool is amazing, thank you!
Field Researcher
#40 Old 6th Aug 2015 at 3:56 PM
Very useful! Thanks so much!
Test Subject
#41 Old 6th Aug 2015 at 4:26 PM Last edited by Bloch676 : 6th Aug 2015 at 5:02 PM.
Not working! Windows error - " Mod Conflict Detector has stopped working". (I'm running Windows 8.1, fully updated. What are the requirements for this program??

The error comes from .NET 4. What version did you use? And, 32 bit or 64 bit??
Test Subject
#42 Old 6th Aug 2015 at 4:41 PM
great program i needed this
Lab Assistant
#43 Old 6th Aug 2015 at 5:16 PM
i so needed this, so thank you, but 1 question, as i'm going through the list of conflicts, it's telling me that every single recolor of a hairstyle conflicts with the original version of the hairstyle, as well as telling me that every male to female conversion of a hairstyle or female to male conversion of a hairstyle also conflicts with the original file for that hairstyle as, that doesn't seem right...i started off trying to delete the recolors or conversions & just leaving the original files, but doesn't seem right for that to be true about every single recolor or conversion i have...if they all conflicted with the original hairstyle file, then no recolors or conversions would ever be possible,.,.as i said, i started to delete some of these, but it doesn't seem right...i tried going into the game after starting to make several of these deletions & i'm finding a ton of now bald sims in my game, which tells me that those deleted hairstyles HAD been working just fine in the game previously, & now they're just gone as they were all showing up as conflicts---as i said, that just doesn't seem right. surely every single recolor & conversion out there can't ACTUALLY be conflicting with the original hair/mesh package, but this program is telling me they are
Test Subject
#44 Old 6th Aug 2015 at 5:26 PM
Amazing and very helpful!! Thank you so much! c:
Lab Assistant
#45 Old 6th Aug 2015 at 5:45 PM
Thank you so much for this! Works great
MTS2 Hot Pepper
#46 Old 6th Aug 2015 at 5:49 PM
Molodets Dimasya!
#47 Old 6th Aug 2015 at 6:08 PM
I can't even start/install it. Every time I try I get a "windows protected your pc" error, and I have 8.1
Lab Assistant
#48 Old 6th Aug 2015 at 6:45 PM
This is sooooooo outstanding! I have been waiting for a program like this since Sims 1 came out! Thank you a million times over!
Test Subject
#49 Old 6th Aug 2015 at 6:52 PM
Thank You, Thank You, Thank You!!! I have been waiting for one of the many talented modders to create something like this.
Mad Poster
#50 Old 6th Aug 2015 at 7:08 PM Last edited by sushigal007 : 6th Aug 2015 at 8:42 PM.
Mine is crashing when I try and scan everything, so as a workaround, I'm scanning folders one-by-one (which is working) in order to narrow down the problem. One question, would it be possible to have a bit that tells you what EP/SP/GP the packages are for? I don't know if such a thing would be possible, but I I've accidentally downloaded stuff for expansions and packs I don't have and I know I haven't managed to find them all yet and something like that would be very handy.

ETA: Well, scanning each folder one by one did the trick and I found the file that was causing everything to crash in my Skin Details folder. After deleting it, it scanned everything with no problem and I found a bunch of TS2 files I'd put in by mistake, so thanks!
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