How does the Unity editor invoke MonoDevelop-Unity?

I'm using UnityExternalScriptEditorHelper (UESEH) and classExec on Windows 7 to reroute Unity's calls to MonoDevelop to Visual C# Express. I was thinking I might like to open MonoDevelop to the same file (in case I want to run the debugger or it's finally updated to not be so buggy as I have previously experienced). But for some reason passing the same parameters to MonoDevelop that were passed to my Batch file by UESEH does absolutely nothing.

Does vanilla MonoDevelop have any documentation of its command-line options? What about the Unity derivative? Maybe someone has gotten lucky and found how to invoke it without documentation?

Unity-VS.bat:

 "C:\Program Files (x86)\classExec\classexec.exe" %1 --class .cs
 echo %CmdCmdLine% > "C:\Users\Chris\Documents\output.txt"
 "C:\Program Files (x86)\Unity\MonoDevelop\bin\MonoDevelop.exe" %1 %2