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Download Ontology.dll and fix "dll not found" error!

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To quickly resolve your problem, we recommend download and use ontology.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 ontology.dll, after that copy it to the appropriate place using the instruction below, it will fix dll errors.

What is Ontology.dll ?

ontology.dll - dll file called "" is a part of Application Ontology library program developed by NVIDIA Corporation.

Some applications or games may need this file to work properly. If ontology.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:

File size: 1.31 MB

MD5 file sum: e22846267e1362e24b6475175f7fcbfc

SHA1 file sum: 2f11c3ce46a4e5bfd859ee43852475000458e49e

Ontology.dll Error Screenshot

ontology.dll missing

Possible error messages regarding this file:

ontology.dll is missing

ontology.dll error loading

ontology.dll crash

ontology.dll was not found

the procedure entry point ontology.dll

ontology.dll could not be located

ontology.dll Access Violation

Cannot find ontology.dll

Cannot register ontology.dll

Recommended Solution to Fix Dll Error

To fix errors related with .DLL file you need to download ontology.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
3224. MB
3219. MB
3215. MB

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I’ve been looking everywhere for missing .DLL file and found it here on Thank you very much.

Billy Hutchinson, UK
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