Index: /trunk/src/VBox/Main/SessionImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/SessionImpl.cpp	(revision 29952)
+++ /trunk/src/VBox/Main/SessionImpl.cpp	(revision 29953)
@@ -181,11 +181,19 @@
     CHECK_OPEN();
 
-    HRESULT rc = E_FAIL;
-
+    HRESULT rc;
     if (mConsole)
         rc = mConsole->machine().queryInterfaceTo(aMachine);
     else
         rc = mRemoteMachine.queryInterfaceTo(aMachine);
-    ComAssertComRC(rc);
+    if (FAILED(rc))
+    {
+        /** @todo VBox 3.3: replace E_FAIL with rc here. */
+        if (mConsole)
+            setError(E_FAIL, tr("Failed to query the session machine (%Rhrc)"), rc);
+        else if (FAILED_DEAD_INTERFACE(rc))
+            setError(E_FAIL, tr("Peer process crashed"));
+        else
+            setError(E_FAIL, tr("Failed to query the remote session machine (%Rhrc)"), rc);
+    }
 
     return rc;
@@ -203,11 +211,19 @@
     CHECK_OPEN();
 
-    HRESULT rc = E_FAIL;
-
+    HRESULT rc;
     if (mConsole)
         rc = mConsole.queryInterfaceTo(aConsole);
     else
         rc = mRemoteConsole.queryInterfaceTo(aConsole);
-    ComAssertComRC(rc);
+    if (FAILED(rc))
+    {
+        /** @todo VBox 3.3: replace E_FAIL with rc here. */
+        if (mConsole)
+            setError(E_FAIL, tr("Failed to query the console (%Rhrc)"), rc);
+        else if (FAILED_DEAD_INTERFACE(rc))
+            setError(E_FAIL, tr("Peer process crashed"));
+        else
+            setError(E_FAIL, tr("Failed to query the remote console (%Rhrc)"), rc);
+    }
 
     return rc;