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CAD tip CAD tip # 9656:

Question CAD 
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Q - question

Inventor: Cannot load library MbUI.dll and RxPart.dll.

A - answer Just after launch, Inventor reports the error "Cannot load library C:\Program files\Autodesk\Inventor 2013\Bin\MbUI.dll" possibly followed by the message "Fatal error; library C:\Program files\Autodesk\Inventor 2014\Bin\RxPart.dll does not exist". This is caused either by a damaged installation or - more probably - by an intrusion of your antivirus program.

Especially Avast! may quarantine these DLL files by mistake and Inventor then cannot be run. Set exceptions for your antivirus.

Comment by DaveMan: You have to go into the statistics section of AVAST, component settings, then virus chest. You will find the Autodesk DLL's in the chest. Right click on the file and choose restore and add to exceptions.

100% *  CAD 
20.1.2014    3172x  
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applies to: Inventor 2014 · Inventor 2013 ·

See also:
Tip 10881:What is the process acwebbrowser.exe resp. Chromium host executable?
Tip 9538:Revit installation hangs at "Preparing Revit Content".
Tip 8263:AutoCAD Civil 3D does not display the surface tooltip bubble.
Tip 8154:Unknown command MAPWSPACE - cannot start job panel in AutoCAD Map.
Tip 7937:AutoCAD freezes trying to Open a DWG drawing.

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