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rhino:5:troubleshooting [2015/09/14] (current)
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 +====== Rhino 5: Error 0xc000007b ======
 +**Problem:​**\\ Rhino 5 64-bit cannot run because of **Error 0xc000007b**.
 +**Cause:​**\\ Windows calls a 32-bit msvcr100.dll when Rhino 5 64-bit runs.
 +**Solution 1:**
 +  - Delete the **msvcr100.dll** under **C:​\Windows\System32**.\\ <color #​999999>​32-bit DLLs should not exist in the System32 folder on 64-bit Windows systems. It may be mistakenly installed by a 32-bit program'​s installer.</​color>​
 +  - Install [[http://​​en-us/​download/​details.aspx?​id=13523|Microsoft Visual C++ 2010 SP1 Redistributable Package (x64)]]\\ <color #​999999>​The 64-bit msvcr100.dll will be installed.</​color>​
 +  - Run Rhino 5 64-bit.
 +**Solution 2:** If Solution 1 doesn'​t help, please continue.
 +  - Download **Dependency Walker for x64** from http://​
 +  - Extract the files in the zip file you've downloaded to a folder.
 +  - Run **depends.exe**.
 +  - Open Rhino 5 64-bit'​s shortcut icon on your desktop.\\ <color #​999999>​C:​\Program Files\Rhinoceros 5 (64-bit)\System\Rhino.exe is opened.</​color>​
 +  - Click the header of the **CPU** column to sort the DLLs with their CPU type.\\ {{http://​​_media/​rhino/​5/​k01376b.png?​600}}
 +  - Find the <color red>​**x86**</​color>​ DLLs.
 +  - Press **F9** or select **Full Paths** from the **View** menu. 
 +  - Find the paths of the **x86** DLLs.
 +  - Delete the x86 DLLs under **C:​\Windows\System32**.\\ <color #​999999>​There'​s most likely only one x86 DLL found under C:​\Windows\System32. Don't delete the x86 DLLs outside of C:​\Windows\System32.</​color>​
 +  - Install [[http://​​en-us/​download/​details.aspx?​id=13523|Microsoft Visual C++ 2010 SP1 Redistributable Package (x64)]]
 +  - Run Rhino 5 64-bit.
 +If the Error 0xc000007b happens when **Rhino 5 32-bit** runs. Use **Dependency Walker for x86** to open Rhino 5 32-bit'​s shortcut icon on the desktop to find and delete the x64 DLLs under C:​\Windows\SysWOW64 that cause the error. And then install [[http://​​en-us/​download/​details.aspx?​id=8328|Microsoft Visual C++ 2010 SP1 Redistributable Package (x86)]].
 +**Need assistance?​**\\ You can save a *.dwi file from Dependency Walker and [[http://​​upload|upload]] the file for Rhino support team with a comment about **Error 0xc000007b**.
 +\\  ​
rhino/5/troubleshooting.txt ยท Last modified: 2015/09/14 (external edit)