title: How can I call a .NET form from an MFC application?
body: <p>We have a several large MFC applications which presently call a COM object to bring up a complex dialog.  We would like to integrate the dialog into the applications -- we do not want to continue to use a COM object.</p>
  
  <p>I'm investigating the possibility of building the dialog in .NET as a separate project (using Windows forms, not WPF) and providing a second C++/CLI project which calls it and which can be called from ordinary C++ code.  This structure is so that the several applications that need to incorporate the dialog can just pick up the projects in their solutions.  (The apps are legacy apps, and rewriting them extensively is not possible -- we're slowly moving them to .NET, but this is a multi-year project.  Converting the apps to C++/CLI is not an option.)</p>
  
  <p>I've built this and tested it from a model application, but so far I'm unable to get it to work in the simplest of the large apps, and based on some things I've read, I'm beginning to doubt that it is possible.  (See <a href="http://social.microsoft.com/Forums/en-US/vcgeneral/thread/29905427-45fe-4386-8ecf-d1d78fa37666/" rel="nofollow noreferrer">this link</a>, especially.  I'm aware of <a href="https://stackoverflow.com/questions/11423/how-to-host-a-wpf-form-in-a-mfc-application">this Stackoverflow question</a>, but it does not seem to be relevant.)</p>
  
  <p>So.  Is this even possible?  Any suggestions on how to proceed?</p>