Addresses roughly half of the C4189 errors though the following methodologies:

1) truly unused vars removed
2) vars leading to remmed out code for debugging remmed in turn.

left out:
vars in macros.

Engine/source/console/compiledEval.cpp

@@ -435,11 +435,12 @@ static void setFieldComponent( SimObject* object, StringTableEntry field, const
 
 ConsoleValueRef CodeBlock::exec(U32 ip, const char *functionName, Namespace *thisNamespace, U32 argc, ConsoleValueRef *argv, bool noCalls, StringTableEntry packageName, S32 setFrame)
 {
+/*
 #ifdef TORQUE_DEBUG
    U32 stackStart = STR.mStartStackSize;
    U32 consoleStackStart = CSTK.mStackPos;
 #endif
-
+*/
    //Con::printf("CodeBlock::exec(%s,%u)", functionName ? functionName : "??", ip);
 
    static char traceBuffer[1024];
@@ -2244,12 +2245,12 @@ execFinished:
    }
 
    decRefCount();
-
+/*
 #ifdef TORQUE_DEBUG
    //AssertFatal(!(STR.mStartStackSize > stackStart), "String stack not popped enough in script exec");
    //AssertFatal(!(STR.mStartStackSize < stackStart), "String stack popped too much in script exec");
 #endif
-
+*/
    return returnValue;
 }