How do I open a new window in Adobe Acrobat using the plugin sdk

Question

I would like to create a new menu item that when clicked it will open a new window (e.g. winform). What I'd like to do is pull data from a server and interact with the user in that window.  Basically show the user a list of PDF files to pull from the server.  Once the user is done selecting which file to pull to have the file pulled from the server into the local drive and have it opened in Adobe Acrobat.  The problem I'm having is that I don't know how to invoke a winform or something like it to place my lists of files and UI controls. I've looked at the samples in the SDK and don't see anything that deals with this particular issue.  I'm a newbie so I'm sure I'm missing something here.  I tried creating a new WinForm in a sample example and ran into errors and the form is not functioning.  Any help is much appreciated.

Answer 1

Thank you Dan_Korn,
This suggestion is very helpful.  I like the idea of creating the new functionality in the language/environment of my choice and simply call it from the plugin.  The only issue I have is that when I start the other gui app from within the plugin I don't know how to communicate with it.  I would like to do these things with it:
1. For the spawned off app to be able to tell Adobe Acrobat to open a file in a certain location.
2. For the spawned off app to exit if Adobe Acrobat is closed.
3. Also if the spawned off app closes for the handles to it to be desposed of and cleaned up to avoid leaks.
Any ideas on the easiest approach to the above behaviors?
Here's  my code so far in the plugin:
void StartApp1()
          STARTUPINFO info={sizeof(info)};
          PROCESS_INFORMATION processInfo;
          if (CreateProcess(NULL , "myexe.exe", NULL, NULL, TRUE, 0, NULL, NULL, &info, &processInfo))
                    ::WaitForSingleObject(processInfo.hProcess, 0);
                    CloseHandle(processInfo.hProcess);
                    CloseHandle(processInfo.hThread);
          else {
                         AVAlertNote("Couldn't luanch the exe");