Index: /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlExec.cpp
===================================================================
--- /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlExec.cpp	(revision 35953)
+++ /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceControlExec.cpp	(revision 35954)
@@ -46,4 +46,13 @@
 
 extern RTLISTNODE g_GuestControlExecThreads;
+
+static int VBoxServiceControlExecPipeInit(PVBOXSERVICECTRLEXECPIPEBUF pBuf, bool fNeedNotificationPipe);
+static int VBoxServiceControlExecPipeBufRead(PVBOXSERVICECTRLEXECPIPEBUF pBuf,
+                                             uint8_t *pbBuffer, uint32_t cbBuffer, uint32_t *pcbToRead);
+static int VBoxServiceControlExecPipeBufWrite(PVBOXSERVICECTRLEXECPIPEBUF pBuf,
+                                              uint8_t *pbData, uint32_t cbData, bool fPendingClose, uint32_t *pcbWritten);
+static bool VBoxServiceControlExecPipeBufIsEnabled(PVBOXSERVICECTRLEXECPIPEBUF pBuf);
+static int VBoxServiceControlExecPipeBufSetStatus(PVBOXSERVICECTRLEXECPIPEBUF pBuf, bool fEnabled);
+static void VBoxServiceControlExecPipeBufDestroy(PVBOXSERVICECTRLEXECPIPEBUF pBuf);
 
 
Index: /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceInternal.h
===================================================================
--- /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceInternal.h	(revision 35953)
+++ /trunk/src/VBox/Additions/common/VBoxService/VBoxServiceInternal.h	(revision 35954)
@@ -304,13 +304,4 @@
                                                   const char *pszUser, const char *pszPassword, uint32_t uTimeLimitMS);
 extern void         VBoxServiceControlExecDestroyThreadData(PVBOXSERVICECTRLTHREADDATAEXEC pThread);
-
-extern int          VBoxServiceControlExecPipeInit(PVBOXSERVICECTRLEXECPIPEBUF pBuf, bool fNeedNotificationPipe);
-extern int          VBoxServiceControlExecPipeBufRead(PVBOXSERVICECTRLEXECPIPEBUF pBuf,
-                                                      uint8_t *pbBuffer, uint32_t cbBuffer, uint32_t *pcbToRead);
-extern int          VBoxServiceControlExecPipeBufWrite(PVBOXSERVICECTRLEXECPIPEBUF pBuf,
-                                                       uint8_t *pbData, uint32_t cbData, bool fPendingClose, uint32_t *pcbWritten);
-extern bool         VBoxServiceControlExecPipeBufIsEnabled(PVBOXSERVICECTRLEXECPIPEBUF pBuf);
-extern int          VBoxServiceControlExecPipeBufSetStatus(PVBOXSERVICECTRLEXECPIPEBUF pBuf, bool fEnabled);
-extern void         VBoxServiceControlExecPipeBufDestroy(PVBOXSERVICECTRLEXECPIPEBUF pBuf);
 #endif /* VBOX_WITH_GUEST_CONTROL */