title: Why does VS 2015 SSIS hang when changing expression
body: <p>I am using a virtual machine Developer environment at work, and when I change an expression in my Visual Studio 2015 SSIS (from ".xls" to ".xlsx") the whole VS program hangs.</p>
  
  <p>(the expression is located in the properties of a Microsoft ACE.OLE.12.0 connection manager's property).</p>
  
  <p>What could be the problem?</p>
  
  <p><strong>EDIT</strong>: Error (also posted in comment)</p>
  
  <pre><code>Problem signature: Problem Event Name:APPCRASH 
  Application Name:devenv.exe 
  Application Version:14.0.25123.0 
  Application Timestamp:56f22f32 
  Fault Module Name:mso40uiwin32client.dll 
  Fault Module Version:16.0.4519.1000 
  Fault Module Timestamp: 58bed810 
  Exception Code:c0000005 
  Exception Offset:00166226 
  OS Version: 6.3.9600.2.0.0.272.7 
  Locale ID:3081 
  Additional Information 1: 5861 
  Additional Information 2: 5861822e1919d7c014bbb064c64908b2 
  Additional Information 3: 5f25 
  Additional Information 4: 5f2531ae070278f893fa99352dadd49e
  </code></pre>