When starting Autodesk software, an error appears:
acad.exe – Entry Point Not Found
The procedure entry point <code point text> could not be located in the dynamic link library C:\Program Files\Autodesk\AutoCAD 2018\<file>.dll. 

acad.exe - Entry Point Not Found
Error: “acad.exe – Entry Point Not Found

Note: The DLL <code point text> and the DLL mentioned can vary. DLL files seen to exhibit this error are:

  • acbol.dll
  • acdb16.dll
  • AcGe16.dll


There are multiple potential causes for this behavior:

  • The DLL referenced in the error message is the wrong version.
  • This happens when a DLL has been copied to a location on the system other than its default location.
  • Conflicting Windows or .NET update.


To resolve the error:

  1. Search the local hard drive for extra copies of the affected DLL.
  2. Remove or rename the extra files.

If the problem persists, use the following strategies:

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See also

Source: Autodesk

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