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Windows Install Instructions & Common Problems

Posted: Mon May 06, 2019 7:25 pm
by xX.jongames.Xx
On homepage of denMS, click the button: Image

This will take you to google drive for the "" download (Warning: Download is large at 1.7 GB and only supports Windows)
After downloading, extract the zip to your preferred location. In order to start the game you run "denms-start.bat"

This is what you will see at first, it is the auto-updater:
warning2.png (23.31 KiB) Viewed 3458 times
WARNING: If this command prompt / terminal window is closed before it finishes (it will launch the game automatically when it is done) or if it is launched twice in succession, it will break the game.
So do not accidentally run "denms-start.bat" twice or close anything until the game has started.

You may have to allow the files "denmsclient.exe", "denmsclientHD.exe", and "CURL.EXE" through your firewall in order to connect (also check the homepage to make sure the server is currently ONLINE).

If you are running Windows 8 or 10, you may need to enable compatibility mode! Windows XP, Vista, and 7 should work without this.
Go to your extracted folder and right click "denmsclient.exe", click 'Properties', and then click the 'Compatibility' tab. Tick the box to 'Run this program in compatibility mode' and choose the option: 'Windows 98 / Windows Me'. Also enable 'Disable display scaling on high DPI settings' and 'Run this program as an administrator'. Finally hit 'Apply' and 'OK'.
If these tips don't resolve the problem, you can follow the Mac & Linux instructions here as those also work on Windows.

NOTICE: VirusTotal and other antivirus will flag "denmsclient.exe" as a virus and delete it. This is not true and is due to a lack of digital signature on the game client.
Information from a reputable forum on game development explaining that these are not viruses: ... st-913011/ ... st-811914/ ... s-1075290/
Link to original file comes from another reputable website.
IF your antivirus deletes the "denmsclient.exe" file which is required to run the game, instead of forcing you to re-download the really large ZIP file, you can click the button: Image which is a much smaller download. You must place it in the original extracted folder and rename it to "denmsclient.exe"
Please add an exception in your anti-virus software for this file and try again.

If all else fails try downloading and running the original setup: ... ZQNWc/view Afterwards, extract "" on top of the install location picked when running the setup.

Error Codes:
(Unspecified error)
Check the refresh rate of your display monitor. MapleStory requires 60 Hz refresh rate. MapleStory will NOT work if your monitor is set to 59 Hz.
Make sure DirectX is updated to the latest version and your graphics drivers are updated and correct.

Runtime / DLL error
Install / update VCRedist 2010: ... px?id=5555

.NET Framework error
Install / update .NET Framework 4: ... x?id=17851
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Re: Windows Install Instructions & Common Problems

Posted: Mon Feb 03, 2020 2:24 pm
by xX.jongames.Xx
If you have issues with connecting but the website says the server is ONLINE, you may also want to allow the files "denmsclient.exe", "denmsclientHD.exe", and "CURL.EXE" through your firewall.
The first two files are the game client and the last file is used to download updates to your denMS client.