title: Long-untouched ASP.NET app throws "Could not load file or assembly 'System.EnterpriseServices.Wrapper.dll'" after Server 2008 security updates
body: <p>I have an app that has been running for years on a .NET 3.5 targeted ASP.NET application.</p>
  
  <p>Last night a slew of overdue updates hit its web server (Windows 2008, IIS7), and now the app doesn't work.</p>
  
  <p>The app fails when trying to connect to an Access database (via standard built in libraries; nothing third party in play here), and the error message is:</p>
  
  <p>Could not load file or assembly 'System.EnterpriseServices.Wrapper.dll</p>
  
  <p>I've googled this extensively and the advice is always the same: repair/reinstall .NET Framework.</p>
  
  <p>I have done this; I did full uninstall and re-install of Framework 3.5 and 4.5.  No help.
  Copying the two EnterpriseServices DLLs into the web site app's BIN folder did not help either.</p>
  
  <p>I did some digging in Process Explorer but am not an expert in that app.</p>
  
  <p>Any suggestions?</p>