fix COMException when no entry point was found.

src/AddIns/Debugger/Debugger.Core/Process.cs

@@ -639,6 +639,8 @@ namespace Debugger
 		{
 			if (BreakAtBeginning) {
 				if (e.Item.SymReader == null) return; // No symbols
+				
+				try {
 					// create a BP at entry point
 					uint entryPoint = e.Item.SymReader.GetUserEntryPoint();
 					if (entryPoint == 0) return; // no EP
@@ -654,6 +656,9 @@ namespace Debugger
 							breakpoint.Remove();
 						breakpoint = null;
 					};
+				} catch { 
+					// the app does not have an entry point - COM exception
+				}
 				BreakAtBeginning = false;
 			}
 		}