diff --git a/src/libCom/cxxTemplates/epicsSingleton.h b/src/libCom/cxxTemplates/epicsSingleton.h
index 74a4193fe..8a7b9e9e6 100644
--- a/src/libCom/cxxTemplates/epicsSingleton.h
+++ b/src/libCom/cxxTemplates/epicsSingleton.h
@@ -42,33 +42,33 @@ public:
     // inline mf def for class within a template required by visual c++ 7
     class reference {
     public:
-        reference ( TYPE & tIn ) epicsThrows (()) :
+        reference ( TYPE & tIn ):
             instance ( tIn ) 
         {
         }
 
-        ~reference () epicsThrows (()) 
+        ~reference ()
         {
         }
 
-        TYPE * operator -> () epicsThrows (()) 
+        TYPE * operator -> ()
         { 
             return & this->instance; 
         }
 
-        const TYPE * operator -> () const epicsThrows (())
+        const TYPE * operator -> () const 
         {
             typename epicsSingleton<TYPE>::reference & ref = 
                 const_cast < typename epicsSingleton<TYPE>::reference & > ( *this );
             return ref.operator -> ();
         }
 
-        TYPE & operator * () epicsThrows (())
+        TYPE & operator * () 
         {
             return * this->operator -> ();
         }
 
-        const TYPE & operator * () const epicsThrows (())
+        const TYPE & operator * () const 
         {
             return * this->operator -> ();
         }
diff --git a/src/libCom/cxxTemplates/tsFreeList.h b/src/libCom/cxxTemplates/tsFreeList.h
index 8510df13b..a920c76cb 100644
--- a/src/libCom/cxxTemplates/tsFreeList.h
+++ b/src/libCom/cxxTemplates/tsFreeList.h
@@ -22,6 +22,12 @@
  *  Author: Jeff Hill
  */
 
+//
+// TODO: this should allow free list chaining so that a free 
+// list (in a different lock domain) is used to provide the
+// tsFreeListChunk.
+//
+
 //
 // To allow your class to be allocated off of a free list
 // using the new operator:
@@ -85,22 +91,16 @@ template < class T, unsigned N = 0x400,
     class MUTEX = epicsMutex >
 class tsFreeList {
 public:
-    tsFreeList () 
-        epicsThrows (());
-    ~tsFreeList () 
-        epicsThrows (());
-    void * allocate ( size_t size ) 
-        epicsThrows (( std::bad_alloc ));
-    void release ( void * p )
-        epicsThrows (());
-    void release ( void * p, size_t size )
-        epicsThrows (());
+    tsFreeList ();
+    ~tsFreeList ();
+    void * allocate ( size_t size );
+    void release ( void * p );
+    void release ( void * p, size_t size );
 private:
     MUTEX mutex;
     tsFreeListItem < T > * pFreeList;
     tsFreeListChunk < T, N > * pChunkList;
-    void * allocateFromNewChunk () 
-        epicsThrows (( std::bad_alloc ));
+    void * allocateFromNewChunk ();
 };
 
 template < class T >
@@ -117,11 +117,11 @@ struct tsFreeListChunk {
 };
 
 template < class T, unsigned N, class MUTEX >
-inline tsFreeList < T, N, MUTEX > :: tsFreeList () 
-    epicsThrows (()) : pFreeList ( 0 ), pChunkList ( 0 ) {}
+inline tsFreeList < T, N, MUTEX > :: tsFreeList () : 
+    pFreeList ( 0 ), pChunkList ( 0 ) {}
 
 template < class T, unsigned N, class MUTEX >
-tsFreeList < T, N, MUTEX > :: ~tsFreeList () epicsThrows (())
+tsFreeList < T, N, MUTEX > :: ~tsFreeList ()
 {
     while ( tsFreeListChunk < T, N > *pChunk = this->pChunkList ) {
         this->pChunkList = this->pChunkList->pNext;
@@ -131,7 +131,6 @@ tsFreeList < T, N, MUTEX > :: ~tsFreeList () epicsThrows (())
 
 template < class T, unsigned N, class MUTEX >
 void * tsFreeList < T, N, MUTEX >::allocate ( size_t size ) 
-    epicsThrows (( std::bad_alloc ))
 {
     if ( size != sizeof ( T ) || N == 0u || tsFreeListDebugBypass ) {
         void * p = ::operator new ( size );
@@ -151,7 +150,6 @@ void * tsFreeList < T, N, MUTEX >::allocate ( size_t size )
 
 template < class T, unsigned N, class MUTEX >
 void * tsFreeList < T, N, MUTEX >::allocateFromNewChunk () 
-    epicsThrows (( std::bad_alloc ))
 {
     tsFreeListChunk < T, N > * pChunk = 
         new tsFreeListChunk < T, N >;
@@ -171,7 +169,6 @@ void * tsFreeList < T, N, MUTEX >::allocateFromNewChunk ()
 
 template < class T, unsigned N, class MUTEX >
 void tsFreeList < T, N, MUTEX >::release ( void * pCadaver, size_t size ) 
-    epicsThrows (())
 {
     if ( size != sizeof ( T ) ) {
         tsFreeListMemSetDelete ( pCadaver, size );
@@ -184,7 +181,6 @@ void tsFreeList < T, N, MUTEX >::release ( void * pCadaver, size_t size )
 
 template < class T, unsigned N, class MUTEX >
 void tsFreeList < T, N, MUTEX >::release ( void * pCadaver )
-    epicsThrows (())
 {
     if ( N == 0u || tsFreeListDebugBypass ) {
         tsFreeListMemSetDelete ( pCadaver, sizeof ( T ) );
diff --git a/src/libCom/misc/cxxCompilerDependencies.h b/src/libCom/misc/cxxCompilerDependencies.h
index 44192e646..a793035d2 100644
--- a/src/libCom/misc/cxxCompilerDependencies.h
+++ b/src/libCom/misc/cxxCompilerDependencies.h
@@ -63,7 +63,7 @@
 
 // usage: epicsPlacementDeleteOperator (( void *, myMemoryManager & ))
 #if defined ( CXX_PLACEMENT_DELETE )
-#   define epicsPlacementDeleteOperator(X) void operator delete X epicsThrows (());
+#   define epicsPlacementDeleteOperator(X) void operator delete X;
 #else
 #   define epicsPlacementDeleteOperator(X)
 #endif
diff --git a/src/libCom/osi/epicsMutex.cpp b/src/libCom/osi/epicsMutex.cpp
index 10675c5f3..4ee460580 100644
--- a/src/libCom/osi/epicsMutex.cpp
+++ b/src/libCom/osi/epicsMutex.cpp
@@ -192,7 +192,7 @@ void epicsShareAPI epicsMutexShowAll(int onlyLocked,unsigned  int level)
     epicsMutexOsdUnlock(epicsMutexGlobalLock);
 }
 
-epicsMutex :: epicsMutex () epicsThrows (( epicsMutex::mutexCreateFailed )) :
+epicsMutex :: epicsMutex () :
     id ( epicsMutexCreate () )
 {
     if ( this->id == 0 ) {
@@ -201,13 +201,11 @@ epicsMutex :: epicsMutex () epicsThrows (( epicsMutex::mutexCreateFailed )) :
 }
 
 epicsMutex ::~epicsMutex () 
-    epicsThrows (())
 {
     epicsMutexDestroy ( this->id );
 }
 
 void epicsMutex::lock ()
-    epicsThrows (( epicsMutex::invalidMutex ))
 {
     epicsMutexLockStatus status = epicsMutexLock ( this->id );
     if ( status != epicsMutexLockOK ) {
@@ -216,7 +214,6 @@ void epicsMutex::lock ()
 }
 
 bool epicsMutex::tryLock () // X aCC 361
-    epicsThrows (( epicsMutex::invalidMutex ))
 {
     epicsMutexLockStatus status = epicsMutexTryLock ( this->id );
     if ( status == epicsMutexLockOK ) {
@@ -229,13 +226,11 @@ bool epicsMutex::tryLock () // X aCC 361
 }
 
 void epicsMutex::unlock ()
-    epicsThrows (())
 {
     epicsMutexUnlock ( this->id );
 }
 
 void epicsMutex :: show ( unsigned level ) const 
-    epicsThrows (())
 {
     epicsMutexShow ( this->id, level );
 }
diff --git a/src/libCom/osi/epicsMutex.h b/src/libCom/osi/epicsMutex.h
index 76ae808a5..883c5bcd7 100644
--- a/src/libCom/osi/epicsMutex.h
+++ b/src/libCom/osi/epicsMutex.h
@@ -27,18 +27,12 @@ class epicsShareClass epicsMutex {
 public:
     class mutexCreateFailed {}; // exception
     class invalidMutex {}; // exception
-    epicsMutex ()
-        epicsThrows (( mutexCreateFailed ));
-    ~epicsMutex ()
-        epicsThrows (());
-    void show ( unsigned level ) const 
-        epicsThrows (());
-    void lock () /* blocks until success */
-        epicsThrows (( invalidMutex )); 
-    void unlock () 
-        epicsThrows (());
-    bool tryLock () /* true if successful */
-        epicsThrows (( invalidMutex ));
+    epicsMutex ();
+    ~epicsMutex ();
+    void show ( unsigned level ) const;
+    void lock (); /* blocks until success */
+    void unlock ();
+    bool tryLock (); /* true if successful */
 private:
     epicsMutexId id;
     epicsMutex ( const epicsMutex & );
diff --git a/src/libCom/timer/epicsTimer.cpp b/src/libCom/timer/epicsTimer.cpp
index 7250d33a1..d0a4d1970 100644
--- a/src/libCom/timer/epicsTimer.cpp
+++ b/src/libCom/timer/epicsTimer.cpp
@@ -41,7 +41,7 @@ epicsTimerNotify::~epicsTimerNotify  () {}
 
 void epicsTimerNotify::show ( unsigned /* level */ ) const {}
 
-epicsTimerForC::epicsTimerForC ( timerQueue &queue, epicsTimerCallback pCBIn, void *pPrivateIn ) epicsThrows (()) :
+epicsTimerForC::epicsTimerForC ( timerQueue &queue, epicsTimerCallback pCBIn, void *pPrivateIn ) :
     timer ( queue ), pCallBack ( pCBIn ), pPrivate ( pPrivateIn )
 {
 }
@@ -72,7 +72,7 @@ epicsTimerQueueActiveForC::~epicsTimerQueueActiveForC ()
 {
 }
 
-void epicsTimerQueueActiveForC::release () epicsThrows (())
+void epicsTimerQueueActiveForC::release ()
 {
     epicsSingleton < timerQueueActiveMgr >::reference pMgr = 
         timerQueueMgrEPICS.getReference ();
diff --git a/src/libCom/timer/timer.cpp b/src/libCom/timer/timer.cpp
index cc5a56405..67cb8e83a 100644
--- a/src/libCom/timer/timer.cpp
+++ b/src/libCom/timer/timer.cpp
@@ -35,7 +35,7 @@ template class tsFreeList < timer, 0x20 >;
 #   pragma warning ( pop )
 #endif
 
-timer::timer ( timerQueue & queueIn ) epicsThrows (()):
+timer::timer ( timerQueue & queueIn ) :
     queue ( queueIn ), curState ( stateLimbo ), pNotify ( 0 ) 
 {
 }
diff --git a/src/libCom/timer/timerPrivate.h b/src/libCom/timer/timerPrivate.h
index 6724d0ce9..ed8fe973e 100644
--- a/src/libCom/timer/timerPrivate.h
+++ b/src/libCom/timer/timerPrivate.h
@@ -43,7 +43,7 @@ public:
     void * operator new ( size_t size, tsFreeList < timer, 0x20 > & );
     epicsPlacementDeleteOperator (( void *, tsFreeList < timer, 0x20 > & ))
 protected:
-    timer ( class timerQueue & ) epicsThrows (());
+    timer ( class timerQueue & );
     ~timer (); 
     timerQueue & queue;
 private:
@@ -67,7 +67,7 @@ struct epicsTimerForC : public epicsTimerNotify, public timer {
 public:
     void destroy ();
 protected:
-    epicsTimerForC ( timerQueue &, epicsTimerCallback, void *pPrivateIn ) epicsThrows (());
+    epicsTimerForC ( timerQueue &, epicsTimerCallback, void *pPrivateIn );
     ~epicsTimerForC (); 
     void * operator new ( size_t size, tsFreeList < epicsTimerForC, 0x20 > & );
     epicsPlacementDeleteOperator (( void *, tsFreeList < epicsTimerForC, 0x20 > & ))
@@ -195,7 +195,7 @@ struct epicsTimerQueueActiveForC : public timerQueueActive,
     public tsDLNode < epicsTimerQueueActiveForC > {
 public:
     epicsTimerQueueActiveForC ( bool okToShare, unsigned priority );
-    void release () epicsThrows (());
+    void release ();
     void * operator new ( size_t );
     void operator delete ( void * );
 protected:
@@ -223,7 +223,7 @@ inline void * timer::operator new ( size_t size,
 
 #ifdef CXX_PLACEMENT_DELETE
 inline void timer::operator delete ( void * pCadaver, 
-                     tsFreeList < timer, 0x20 > & freeList ) epicsThrows(())
+                     tsFreeList < timer, 0x20 > & freeList ) 
 {
     freeList.release ( pCadaver );
 }
@@ -237,7 +237,7 @@ inline void * epicsTimerForC::operator new ( size_t size,
 
 #ifdef CXX_PLACEMENT_DELETE
 inline void epicsTimerForC::operator delete ( void * pCadaver, 
-                        tsFreeList < epicsTimerForC, 0x20 > & freeList ) epicsThrows(())
+                        tsFreeList < epicsTimerForC, 0x20 > & freeList ) 
 {
     freeList.release ( pCadaver );
 }