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To quickly resolve your problem, we recommend download and use isdnui.dll Fix Tool. If you have technical experience and you want to install a DLL file manually, please select your version of Windows and download isdnui.dll, after that copy it to the appropriate place using the instruction below, it will fix dll errors.

What is Isdnui.dll ?

isdnui.dll - dll file called "Windows eigenschappen ISDN" is a part of Besturingssysteem Microsoft(R) Windows(R) Millennium program developed by Microsoft Corporation.

Some applications or games may need this file to work properly. If isdnui.dll is missing, whenever you start the application/game you may experience various kinds of errors. To fix those errors, please read the Recommended Solution below.

File version: 4.90.3000

File size: 40.00 KB

MD5 file sum: 8F879D95DC7D11622EECB45EF1C791E3

SHA1 file sum: 2C8C8F5D0DB215F5558EDA5A3B4A3F7FE8F050E2

Isdnui.dll Error Screenshot

isdnui.dll missing

Possible error messages regarding this file:

isdnui.dll is missing

isdnui.dll error loading

isdnui.dll crash

isdnui.dll was not found

the procedure entry point isdnui.dll

isdnui.dll could not be located

isdnui.dll Access Violation

Cannot find isdnui.dll

Cannot register isdnui.dll

Recommended Solution to Fix Dll Error

To fix errors related with .DLL file you need to download isdnui.dll and copy it to the installation folder of the application or game, or copy it into the Windows system folder and it should fix the error. If you don’t know how to install this file, please read our tutorial about How to install DLL files.


Version / BitsSizeMD5/SHA-1
324.0.0.115026.5 kb

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