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Could not load SolidWorks DLL: slduiu.dll

Question asked by freaky lion on Feb 4, 2012
Latest reply on Apr 6, 2012 by Nico H

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Hi,

I’m running SolidWorks 2009 on my computer and it is working great. Now I tried to install SolidWorks 2011. Installation completed well but when I start SolidWorks I get message “Could not load SolidWorks DLL: slduiu.dll”. I tried to install SolidWorks on two computers but on both have the same problem. On both computers are Win7 and Office 2007.

Can somebody help me why SolidWorks can’t find this DLL file? Why this dll file was not installed and what I have to do to fix this. I have reinstalled a few times already but always have the same problem. Is this DLL file maybe not from SolidWorks?

Thank you.

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11 Replies

Scott McFadden Feb 4, 2012 3:41 PM
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Freaky,
Have you done a clean uninstall?
Where did you get the install disks?
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- freaky lion @ Scott McFadden on Feb 4, 2012 4:01 PM
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  I even formatted my computer and installed SolidWorks on a clean Windows 7 but the same problem.
  I have the same problem with Solidworks 2010 (the same DLL is missing). Only SolidWorks 2009 doesn’t have this problem.
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  - Scott McFadden @ freaky lion on Feb 4, 2012 4:30 PM
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    Interesting...
    Here is a definition of what this .dll file does incase you didn't know.
    http://www.processlibrary.com/directory/files/slduiu/446661/
    
    I did a search on mine and I found it, but not knowing a whole lot about this file
    to the point of whether it is safe or wise to copy from another machine.
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    - freaky lion @ Scott McFadden on Feb 4, 2012 4:40 PM
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      I can’t find this DLL on my computer. But SolidWorks 2009 is working without it. Only newer versions have this problem.
      As I know this is a part of SolidWorks. Why is not on my computer I don’t know.
      Do you think you could attach this DLL that I try to copy it on my computer. I will appreciate this. In which folder did you found this DLL?
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      - Scott McFadden @ freaky lion on Feb 5, 2012 9:17 AM
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        It is possible that the file is for the newer versions only. Not knowing about programming
        I am guessing that newer versions breed newer .dll files
        
        On my system the file is in the C:\Program Files\Solidworks Corp\Soildworks
        
        I tried attaching the file, but it just hung up and wouldn't process the upload.
        I can try emailing it to you. Send me an email or give me your email address and we can try that route.
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        freaky lion @ Scott McFadden on Feb 5, 2012 10:11 AM
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        Hi,
        
        Thank you for your help. I looked into that folder on my computer and I found it on my computer as well.
        Why SolidWorks can’t load it if it’s there? Is this DLL file somehow connected with the graphic card? I have an old computer (Athlon 1,8GHz + 2Gb RAM) and graphic card Tornado GeForce2 MX/MX 400. I believe there is enough RAM and Processor to start SolidWorks. Maybe only the graphic card is not good enough.
        What do you think?
        
        PS: I can't find your attachment. Where is it?
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        Scott McFadden @ freaky lion on Feb 5, 2012 10:23 AM
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        No problem. I am glad you found it. Weird though. If you looked at my last
        posting I wasn't able to load it. My system hung up.
        
        If you think your graphics card isn't good enough have you checked it in
        comparison to the SW site?
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        freaky lion @ Scott McFadden on Feb 5, 2012 11:13 AM
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        I can’t find my graphic card on this website. But this are only recommended graphic cards and SolidWorks 2009 is working.
        I’m without ideas.
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        Scott McFadden @ freaky lion on Feb 5, 2012 12:16 PM
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        If your graphics card is not listed that means it is not one of there supported ones.
        But with that said it doesn't mean that it wont work fine like you are seeing on your
        2009 version.
        As far as the .dll file I am at a loss at this point as well. I would suggest you might want to contact your
        VAR (reseller) and see if they can offer any suggestions.
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        freaky lion @ Scott McFadden on Feb 5, 2012 12:50 PM
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        OK, Thank you.
        
        Best regards.
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        Nico H @ freaky lion on Apr 6, 2012 9:46 AM
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        Hello Freaky lion,
        
        Do you have a clue? Because I have the same problem.
        
        Thx
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Could not load SolidWorks DLL: slduiu.dll

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