title: What is DLLWrap.dll used for in InstallShield?
body: <p>I am working on an older InstallShield 2010 installer.  It puts down DLLWRAP referenced from programfiles\installshield.  There are two Custom actions that call functions DLLWrapCleanup after install finialize and DLLWrapStartup after SetupCompleteSuccess.</p>
  
  <p>Can anyone explain what this is and what it does - or even if it is needed?  Thanks.</p>