diff --git a/SCRIPTS/HMS/replay_hcal_test_stand.C b/SCRIPTS/HMS/replay_hcal_test_stand.C
index 5e0eeeea7a4049dc4f456167cd1a9139ed1d9b68..c5b4b82ec8858f78a559c61906b20448db1141ce 100644
--- a/SCRIPTS/HMS/replay_hcal_test_stand.C
+++ b/SCRIPTS/HMS/replay_hcal_test_stand.C
@@ -32,7 +32,7 @@ void replay_hcal_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/HMS/DETEC/hcal.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* HMS = new THcHallCSpectrometer("H", "HMS");
   gHaApps->Add(HMS);
@@ -40,6 +40,10 @@ void replay_hcal_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcShower* cal = new THcShower("cal", "Calorimeter");
   HMS->AddDetector(cal);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/HMS/replay_hcer_test_stand.C b/SCRIPTS/HMS/replay_hcer_test_stand.C
index 3e3c3047b3b127afbc96d7bacf61c0e743e8360e..83c5024494e91bb8089f0ee324b97c6487badd9a 100644
--- a/SCRIPTS/HMS/replay_hcer_test_stand.C
+++ b/SCRIPTS/HMS/replay_hcer_test_stand.C
@@ -35,7 +35,7 @@ void replay_hcer_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/HMS/DETEC/hcer_htrig.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* HMS = new THcHallCSpectrometer("H", "HMS");
   gHaApps->Add(HMS);
@@ -50,6 +50,10 @@ void replay_hcer_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcTrigDet* hms = new THcTrigDet("hms", "HMS Trigger Information");
   TRG->AddDetector(hms);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/HMS/replay_hdc_test_stand.C b/SCRIPTS/HMS/replay_hdc_test_stand.C
index 231e798f42acb697ab0af9c6d59127caa89f4499..6128bf52742cc740c73b5ee90a26b70356412bb4 100644
--- a/SCRIPTS/HMS/replay_hdc_test_stand.C
+++ b/SCRIPTS/HMS/replay_hdc_test_stand.C
@@ -39,7 +39,7 @@ void replay_hdc_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   gHcDetectorMap = new THcDetectorMap();
   //gHcDetectorMap->Load(gHcParms->GetString("g_decode_map_filename"));
   gHcDetectorMap->Load("MAPS/HMS/DETEC/hdc_htrig.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* HMS = new THcHallCSpectrometer("H", "HMS");
   gHaApps->Add(HMS);
@@ -56,7 +56,11 @@ void replay_hdc_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Add trigger detector to trigger apparatus
   THcTrigDet* hms = new THcTrigDet("hms", "HMS Trigger Information");
   TRG->AddDetector(hms);
-  
+
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   //THcScalerEvtHandler *hscaler = new THcScalerEvtHandler("HS", "HC scaler event type 0");
   //hscaler->SetDebugFile("HScaler.txt");
   //gHaEvtHandlers->Add(hscaler);
diff --git a/SCRIPTS/HMS/replay_hhodo_test_stand.C b/SCRIPTS/HMS/replay_hhodo_test_stand.C
index 9f240f42d51eb451076895f5ad5228e2197dcfb4..4c01e0496f82161fa1a0e7e0799cfd60cc19f4ef 100644
--- a/SCRIPTS/HMS/replay_hhodo_test_stand.C
+++ b/SCRIPTS/HMS/replay_hhodo_test_stand.C
@@ -35,7 +35,7 @@ void replay_hhodo_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/HMS/DETEC/hhodo_htrig.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* HMS = new THcHallCSpectrometer("H", "HMS");
   gHaApps->Add(HMS);
@@ -50,6 +50,10 @@ void replay_hhodo_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcTrigDet* hms = new THcTrigDet("hms", "HMS Trigger Information");
   TRG->AddDetector(hms);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/HMS/replay_htrig_test_stand.C b/SCRIPTS/HMS/replay_htrig_test_stand.C
index 77b0ce8c0d3020ed0400faf51f87644ed0b7ba92..9800130501586948304cffcd4180e8514d4a9967 100644
--- a/SCRIPTS/HMS/replay_htrig_test_stand.C
+++ b/SCRIPTS/HMS/replay_htrig_test_stand.C
@@ -42,7 +42,11 @@ void replay_htrig_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Add trigger detector to trigger apparatus
   THcTrigDet* hms = new THcTrigDet("hms", "HMS Trigger Information");
   TRG->AddDetector(hms);
-  
+
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/SHMS/replay_paero_test_stand.C b/SCRIPTS/SHMS/replay_paero_test_stand.C
index c934c040c5dd8026952fdc66f5fcce6dc9f46a7e..aabfbfa8befcb226d6a4a308a18d26f125716d35 100644
--- a/SCRIPTS/SHMS/replay_paero_test_stand.C
+++ b/SCRIPTS/SHMS/replay_paero_test_stand.C
@@ -35,7 +35,7 @@ void replay_paero_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/SHMS/DETEC/paero_ptrig.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* SHMS = new THcHallCSpectrometer("P", "SHMS");
   gHaApps->Add(SHMS);
@@ -50,6 +50,10 @@ void replay_paero_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcTrigDet* shms = new THcTrigDet("shms", "SHMS Trigger Information");
   TRG->AddDetector(shms);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/SHMS/replay_pcal_test_stand.C b/SCRIPTS/SHMS/replay_pcal_test_stand.C
index 161eeeac9bea570b4dbc0370b46ee84ba67c7030..17abdea4500929a0599ccfd02473213c22727edc 100644
--- a/SCRIPTS/SHMS/replay_pcal_test_stand.C
+++ b/SCRIPTS/SHMS/replay_pcal_test_stand.C
@@ -32,7 +32,7 @@ void replay_pcal_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/SHMS/DETEC/pcal.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* SHMS = new THcHallCSpectrometer("P", "SHMS");
   gHaApps->Add(SHMS);
@@ -40,6 +40,10 @@ void replay_pcal_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcShower* cal = new THcShower("cal", "Calorimeter");
   SHMS->AddDetector(cal);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/SHMS/replay_pdc_test_stand.C b/SCRIPTS/SHMS/replay_pdc_test_stand.C
index 0db32feb83266574d889786f6ea32e57b600fe46..0b1e8c7517decd18aa425b11f4cda027a8588ade 100644
--- a/SCRIPTS/SHMS/replay_pdc_test_stand.C
+++ b/SCRIPTS/SHMS/replay_pdc_test_stand.C
@@ -39,10 +39,13 @@ void replay_pdc_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Set up the equipment to be analyzed.
   THaApparatus* SHMS = new THcHallCSpectrometer("P", "SHMS");
   gHaApps->Add(SHMS);
-
   // Add SHMS drift chambers
   SHMS->AddDetector(new THcDC("dc", "Drift Chambers"));
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Additional detectors:
   //HMS->AddDetector(new THcHodoscope("hod", "Hodoscope"));
   //HMS->AddDetector(new THcShower("cal", "Shower"));
diff --git a/SCRIPTS/SHMS/replay_phgcer_test_stand.C b/SCRIPTS/SHMS/replay_phgcer_test_stand.C
index d5e06b3ad73029022b149c0c309d0d39aa848f19..53e1a432093aeba76eaf2051140fbfcf425ec591 100644
--- a/SCRIPTS/SHMS/replay_phgcer_test_stand.C
+++ b/SCRIPTS/SHMS/replay_phgcer_test_stand.C
@@ -35,7 +35,7 @@ void replay_phgcer_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/SHMS/DETEC/phgcer_ptrig.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* SHMS = new THcHallCSpectrometer("P", "SHMS");
   gHaApps->Add(SHMS);
@@ -50,6 +50,10 @@ void replay_phgcer_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcTrigDet* shms = new THcTrigDet("shms", "SHMS Trigger Information");
   TRG->AddDetector(shms);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/SHMS/replay_phodo_test_stand.C b/SCRIPTS/SHMS/replay_phodo_test_stand.C
index 3827cba166e0d4d4d41605d18c158bf1ac7e6c38..4ce629fc2bfcf094879e0c9d7ea5441f9adbedb2 100644
--- a/SCRIPTS/SHMS/replay_phodo_test_stand.C
+++ b/SCRIPTS/SHMS/replay_phodo_test_stand.C
@@ -35,13 +35,16 @@ void replay_phodo_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/SHMS/DETEC/phodo_ptrig.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* SHMS = new THcHallCSpectrometer("P", "SHMS");
   gHaApps->Add(SHMS);
   // Add hodoscope to HMS apparatus
   THcHodoscope* hod = new THcHodoscope("hod", "Hodoscope");
   SHMS->AddDetector(hod);
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
 
   // Add trigger apparatus
   THaApparatus* TRG = new THcTrigApp("T", "TRG");
@@ -50,6 +53,10 @@ void replay_phodo_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcTrigDet* shms = new THcTrigDet("shms", "SHMS Trigger Information");
   TRG->AddDetector(shms);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/SHMS/replay_pngcer_test_stand.C b/SCRIPTS/SHMS/replay_pngcer_test_stand.C
index 506a267ef3a7c13971979f2d86e5d01d4de85f7f..5efeae369abc871ab96dca1419bb078742d9742e 100644
--- a/SCRIPTS/SHMS/replay_pngcer_test_stand.C
+++ b/SCRIPTS/SHMS/replay_pngcer_test_stand.C
@@ -35,7 +35,7 @@ void replay_pngcer_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Load the Hall C style detector map
   gHcDetectorMap = new THcDetectorMap();
   gHcDetectorMap->Load("MAPS/SHMS/DETEC/pngcer_ptrig.map");
-  
+
   // Set up the equipment to be analyzed.
   THaApparatus* SHMS = new THcHallCSpectrometer("P", "SHMS");
   gHaApps->Add(SHMS);
@@ -50,6 +50,10 @@ void replay_pngcer_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   THcTrigDet* shms = new THcTrigDet("shms", "SHMS Trigger Information");
   TRG->AddDetector(shms);
 
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes
diff --git a/SCRIPTS/SHMS/replay_ptrig_test_stand.C b/SCRIPTS/SHMS/replay_ptrig_test_stand.C
index 2c83591e7f7e08f508e01107cb39263c5d2bef7e..fabb4601fcbe30e2d53696e6d0ead946cd5db5d7 100644
--- a/SCRIPTS/SHMS/replay_ptrig_test_stand.C
+++ b/SCRIPTS/SHMS/replay_ptrig_test_stand.C
@@ -42,7 +42,11 @@ void replay_ptrig_test_stand(Int_t RunNumber=0, Int_t MaxEvent=0) {
   // Add trigger detector to trigger apparatus
   THcTrigDet* shms = new THcTrigDet("shms", "SHMS Trigger Information");
   TRG->AddDetector(shms);
-  
+
+  // Add handler for prestart event 125.
+  THcConfigEvtHandler* ev125 = new THcConfigEvtHandler("HC", "Config Event type 125");
+  gHaEvtHandlers->Add(ev125);
+
   // Set up the analyzer - we use the standard one,
   // but this could be an experiment-specific one as well.
   // The Analyzer controls the reading of the data, executes