diff --git a/site_ansto/hmcontrol_ansto.c b/site_ansto/hmcontrol_ansto.c
new file mode 100644
index 00000000..6684dc1c
--- /dev/null
+++ b/site_ansto/hmcontrol_ansto.c
@@ -0,0 +1,104 @@
+/*------------------------------------------------------------------------
+                        H M C O N T R O L _ A N S T O
+
+ A module creating a slightly modified HMControl object suitable for the
+ ANSTO HM.  This works exactly the same as the existing HMControl, but
+ has extra options (e.g. pausing HM's at the end of a count instead of 
+ stopping them).
+
+ copyright: see copyright.h
+ 
+ Mark Lesha, October 2006
+-------------------------------------------------------------------------*/
+
+#include <stdlib.h>
+#include <assert.h>
+#include <tcl.h>
+#include "fortify.h"
+#include "hmcontrol.h"
+#include "hmcontrol_ansto.h" // extends hmcontrol.h
+#include "HistMem.h"
+#include "devexec.h"
+
+/*----------------------------------------------------------------------*/
+static int HMCStatus_ANSTO(void *pData, SConnection *pCon)
+// A very slightly modified version of the original HMCStatus(),
+// to support pause-on-count-terminate option for ANSTO HM.
+{
+  int status,i; 
+  pHMcontrol self = NULL;
+
+  self = (pHMcontrol)pData;
+  assert(self);
+
+  status = self->slaves[0]->CheckCountStatus(self->slaveData[0],pCon);
+  if(status == HWIdle || status == HWFault)
+  {
+    /*
+     stop counting on slaves when finished or when an error 
+     occurred.
+    */
+    InvokeCallBack(self->pCall,COUNTEND,pCon);
+    // If required, pause hm objects when count finishes
+    // instead of stopping them. Use the existing interface
+    // functions to do this.
+    if (((pHMcontrol_ANSTO)pData)->Pause_HM_After_Count)
+    	self->pCount->Pause(self,pCon);
+    else
+    	self->pCount->Halt(self);
+  }
+  /*
+    Warning: this assumes that slaves 1 - MAXSLAVE are histogram memories.
+    If this assumption does not hold, change this code to check if this
+    is really a histogram memory.
+  */
+  for(i = 1; i < MAXSLAVE; i++)
+  {
+    if(self->slaves[i] != NULL)
+    {
+      HistDirty((pHistMem)self->slaveData[i]);
+    }
+  }
+  return status;
+}
+
+/*----------------------------------------------------------------------*/
+int HMControlAction_ANSTO(SConnection *pCon, SicsInterp *pSics, 
+                          void *pData, int argc, char *argv[])
+// This function extends HMControlAction by looking for an optional
+// fifth command argument, which is stored to the expanded command data.
+// Thereafter the rest of the arguments are simply passed to the standard
+// HMControlAction function.
+{
+	((pHMcontrol_ANSTO)pData)->Pause_HM_After_Count
+		=(argc>=5&&strcmp(argv[4],"pause")==0);
+	return HMControlAction(pCon, pSics, pData, argc, argv);
+}
+
+/*----------------------------------------------------------------------*/
+int MakeHMControl_ANSTO(SConnection *pCon, SicsInterp *pSics, 
+                          void *pData, int argc, char *argv[])
+{
+	/* Start by making a plain vanilla HMControl object, */
+	/* which gets installed in the command list. */
+	if (!MakeHMControl(pCon, pSics, pData, argc, argv))
+		return 0;
+	/* Find the new object in the command list. */
+	CommandList *pCommand;
+	if (!(pCommand=FindCommand(pSics,argv[1])))
+		return 0;
+	/* Get the original command's data, and add the extended command's data */
+	/* to it. The altered size of the object does not make any side effects. */
+	HMcontrol_ANSTO *newpData;
+	if (!(newpData=(HMcontrol_ANSTO *)malloc(sizeof(HMcontrol_ANSTO))))
+		return 0;
+	memcpy(newpData,pCommand->pData,sizeof(HMcontrol));
+	memset(((char *)newpData)+sizeof(HMcontrol),0,sizeof(HMcontrol_ANSTO)-sizeof(HMcontrol));
+	free(pCommand->pData);
+	pCommand->pData=(void *)newpData;
+	/* Customize the command handler and status reporting routine. */
+    pCommand->OFunc = HMControlAction_ANSTO;
+ 	newpData->hmc.pCount->CheckCountStatus = HMCStatus_ANSTO;
+ 	/* All done, return success. */
+ 	return 1;
+}
diff --git a/site_ansto/hmcontrol_ansto.h b/site_ansto/hmcontrol_ansto.h
new file mode 100644
index 00000000..72d50de1
--- /dev/null
+++ b/site_ansto/hmcontrol_ansto.h
@@ -0,0 +1,28 @@
+/*------------------------------------------------------------------------
+                        H M C O N T R O L _ A N S T O
+
+ A module creating a slightly modified HMControl object suitable for the
+ ANSTO HM.  This works exactly the same as the existing HMControl, but
+ has extra options (e.g. pausing HM's at the end of a count instead of 
+ stopping them).
+
+ copyright: see copyright.h
+ 
+ Mark Lesha, October 2006
+-------------------------------------------------------------------------*/
+
+#ifndef HMCONTROL_ANSTO_H_
+#define HMCONTROL_ANSTO_H_
+
+typedef struct 
+{
+	/* Data of the original HMControl object */
+    HMcontrol hmc;
+    /* Extra data for HMControl_ANSTO for extra functionality */
+    int Pause_HM_After_Count;
+} HMcontrol_ANSTO, *pHMcontrol_ANSTO;
+
+int MakeHMControl_ANSTO(SConnection *pCon, SicsInterp *pSics, 
+	void *pData, int argc, char *argv[]);
+
+#endif /*HMCONTROL_ANSTO_H_*/