title: clr.dll causes 800703e9 on Microsoft .NET 4.6.1
body: <p>When using a DLL that works fine in a .NET-based Windows app in Excel 2013, it crashes the clr.dll:</p>
  
  <pre><code>Application: EXCEL.EXE
  Framework Version: v4.0.30319
  Description: The process was terminated due to an internal error in the .NET Runtime at IP 6F033A0F (6EDA0000) with exit code 800703e9.
  
  Faulting application name: EXCEL.EXE, version: 15.0.4833.1000, time stamp: 0x573ac30d
  Faulting module name: clr.dll, version: 4.6.1076.0, time stamp: 0x56d7a0ff
  Exception code: 0x800703e9
  Fault offset: 0x00293a0f
  Faulting process id: 0x10d4
  Faulting application start time: 0x01d1dceab78fdb9a
  Faulting application path: C:\Program Files\Microsoft Office 15\root\office15\EXCEL.EXE
  Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
  Report Id: 1b887d31-48de-11e6-bbcc-005056c00008
  </code></pre>
  
  <p>The computer has VSTO 2010 installed on top of Windows 7 with all updates applied.</p>
  
  <p>After upgrading to 4.6.2, the crash remained:</p>
  
  <pre><code>Application: EXCEL.EXE
  Framework Version: v4.0.30319
  Description: The process was terminated due to an internal error in the .NET Runtime at IP 57F3288A (57C80000) with exit code 800703e9.
  
  Faulting application name: EXCEL.EXE, version: 15.0.4833.1000, time stamp: 0x573ac30d
  Faulting module name: clr.dll, version: 4.6.1532.0, time stamp: 0x56e76357
  Exception code: 0x800703e9
  Fault offset: 0x002b288a
  Faulting process id: 0x12c4
  Faulting application start time: 0x01d1dcf3ff640774
  Faulting application path: C:\Program Files\Microsoft Office 15\root\office15\EXCEL.EXE
  Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
  Report Id: 6b1fe8ad-48e7-11e6-ae61-005056c00008
  </code></pre>
  
  <p>On other devices running 4.5.2 the problem does not occur. It is either PC bound or .NET version bound.</p>
  
  <p>Does anyone know what might trigger this internal error of clr.dll?</p>