diff --git a/src/Arg.cpp b/src/Arg.cpp
index 86cecd5..13bc0de 100644
--- a/src/Arg.cpp
+++ b/src/Arg.cpp
@@ -21,6 +21,7 @@
 
 
 #include <tclap/Arg.h>
+#include <tclap/CommandLine.h>
 
 using namespace std;
 
@@ -35,24 +36,8 @@ const string Arg::flagStartString = "-";
 const string Arg::nameStartString = "--";
 const string Arg::ignoreNameString = "ignore_rest";
 
-Arg::Arg( const string& flag, 
-		 const string& name, 
-		 const string& desc, 
-		 bool req,
-		 bool valreq,
-		 Visitor* v)
-: 
-  _flag(flag),
-  _name(name),
-  _description(desc),
-  _required(req),
-  _requireLabel("required"),
-  _valueRequired(valreq),
-  _alreadySet(false),
-  _visitor( v ),
-  _ignoreable(true),
-  _xorSet(false)
-{ 
+void Arg::init()
+{
 	if ( _flag.length() > 1 ) 
 		throw(ArgException("Argument flag can only be one character long",
 							toString() ) );
@@ -73,9 +58,62 @@ Arg::Arg( const string& flag,
 							Arg::flagStartString + "' or '" + 
 							Arg::nameStartString + "' or space.",
 							toString() ) );
+  
+}
 
+Arg::Arg( const string& flag, 
+		 const string& name, 
+		 const string& desc, 
+		 bool req,
+		 bool valreq,
+		 Visitor* v)
+: 
+  _flag(flag),
+  _name(name),
+  _description(desc),
+  _required(req),
+  _requireLabel("required"),
+  _valueRequired(valreq),
+  _alreadySet(false),
+  _visitor( v ),
+  _ignoreable(true),
+  _xorSet(false)
+{
+	try { 
+		init(); //< initialize the object
+	} catch (ArgException ae) {
+		throw(ae); //< and forward any exceptions
+	}
 };
 
+Arg::Arg(const std::string& flag, 
+    const std::string& name, 
+    const std::string& desc, 
+    bool req, 
+    bool valreq,
+    CmdLine &parser,
+    Visitor* v) :
+  _flag(flag),
+  _name(name),
+  _description(desc),
+  _required(req),
+  _requireLabel("required"),
+  _valueRequired(valreq),
+  _alreadySet(false),
+  _visitor( v ),
+  _ignoreable(true),
+  _xorSet(false)
+{
+	try { 
+		init(); //< initialize the object
+	} catch (ArgException ae) {
+		throw(ae); //< and forward any exceptions
+	}
+	
+	//Add to the parser, what about exceptions
+	parser.add(*this);
+}
+
 Arg::Arg()
 : 
   _flag(""),
diff --git a/src/SwitchArg.cpp b/src/SwitchArg.cpp
index 0171c4b..6eb3a41 100644
--- a/src/SwitchArg.cpp
+++ b/src/SwitchArg.cpp
@@ -21,6 +21,7 @@
 
 
 #include <tclap/SwitchArg.h>
+#include <tclap/CommandLine.h>
 
 using namespace std;
 
@@ -35,6 +36,18 @@ SwitchArg::SwitchArg(const string& flag,
   _value( _default )
 { };
 
+SwitchArg::SwitchArg(const string& flag, 
+					const string& name, 
+					const string& desc, 
+					bool _default,
+					CmdLine &parser,
+					Visitor* v )
+: Arg(flag, name, desc, false, false, v),
+  _value( _default )
+{ 
+	parser.add(*this);
+}
+
 SwitchArg::~SwitchArg() { };
 
 bool SwitchArg::getValue() { return _value; };