Index: /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlExec.cpp
===================================================================
--- /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlExec.cpp	(revision 29314)
+++ /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlExec.cpp	(revision 29315)
@@ -868,4 +868,7 @@
                                 else /* Something went wrong; report error! */
                                 {
+                                    VBoxServiceError("ControlExec: Could not start process '%s' (CID: %u)! Error: %Rrc\n",
+                                                     pData->pszCmd, pThread->uContextID, rc);
+
                                     int rc2 = VbglR3GuestCtrlExecReportStatus(pThread->uClientID, pThread->uContextID, pData->uPID,
                                                                               PROC_STS_ERROR, rc,