diff --git a/Foundation/include/Poco/DynamicAny.h b/Foundation/include/Poco/DynamicAny.h
index 107a5cb88..3bff46328 100644
--- a/Foundation/include/Poco/DynamicAny.h
+++ b/Foundation/include/Poco/DynamicAny.h
@@ -177,28 +177,28 @@ public:
 
 	template <typename T> 
 	DynamicAny& operator = (const T& other)
-		/// Assignment operator
+		/// Assignment operator for assigning POD to DynamicAny
 	{
 		DynamicAny tmp(other);
 		swap(tmp);
 		return *this;
 	}
-	
+
 	DynamicAny& operator = (const DynamicAny& other);
 		/// Assignment operator specialization for DynamicAny
 
 	template <typename T> 
-	DynamicAny operator + (const T& other) const
-		/// Addition operator
+	const DynamicAny operator + (const T& other) const
+		/// Addition operator for adding POD to DynamicAny
 	{
 		return convert<T>() + other;
 	}
 
-	DynamicAny operator + (const DynamicAny& other) const;
+	const DynamicAny operator + (const DynamicAny& other) const;
 		/// Addition operator specialization for DynamicAny
 
-	DynamicAny operator + (const char* other) const;
-		/// Addition operator specialization for const char*
+	const DynamicAny operator + (const char* other) const;
+		/// Addition operator specialization for adding const char* to DynamicAny
 
 	DynamicAny& operator ++ ();
 		/// Pre-increment operator
@@ -214,7 +214,7 @@ public:
 
 	template <typename T> 
 	DynamicAny& operator += (const T& other)
-		/// Addition asignment operator
+		/// Addition asignment operator for addition/assignment of POD to DynamicAny.
 	{
 		return *this = convert<T>() + other;
 	}
@@ -226,13 +226,13 @@ public:
 		/// Addition asignment operator specialization for const char*
 
 	template <typename T> 
-	DynamicAny operator - (const T& other) const
-		/// Subtraction operator
+	const DynamicAny operator - (const T& other) const
+		/// Subtraction operator for subtracting POD from DynamicAny
 	{
 		return convert<T>() - other;
 	}
 
-	DynamicAny operator - (const DynamicAny& other) const;
+	const DynamicAny operator - (const DynamicAny& other) const;
 		/// Subtraction operator specialization for DynamicAny
 
 	template <typename T> 
@@ -246,13 +246,13 @@ public:
 		/// Subtraction asignment operator specialization for DynamicAny
 
 	template <typename T> 
-	DynamicAny operator * (const T& other) const
-		/// Multiplication operator
+	const DynamicAny operator * (const T& other) const
+		/// Multiplication operator for multiplying DynamicAny with POD
 	{
 		return convert<T>() * other;
 	}
 
-	DynamicAny operator * (const DynamicAny& other) const;
+	const DynamicAny operator * (const DynamicAny& other) const;
 		/// Multiplication operator specialization for DynamicAny
 
 	template <typename T> 
@@ -266,13 +266,13 @@ public:
 		/// Multiplication asignment operator specialization for DynamicAny
 
 	template <typename T> 
-	DynamicAny operator / (const T& other) const
-		/// Division operator
+	const DynamicAny operator / (const T& other) const
+		/// Division operator for dividing DynamicAny with POD
 	{
 		return convert<T>() / other;
 	}
 
-	DynamicAny operator / (const DynamicAny& other) const;
+	const DynamicAny operator / (const DynamicAny& other) const;
 		/// Division operator specialization for DynamicAny
 
 	template <typename T> 
@@ -295,6 +295,9 @@ public:
 	bool operator == (const char* other) const;
 		/// Equality operator specialization for const char*
 
+	bool operator == (const DynamicAny& other) const;
+		/// Equality operator specialization for DynamicAny
+
 	template <typename T> 
 	bool operator != (const T& other) const
 		/// Inequality operator
@@ -302,6 +305,9 @@ public:
 		return convert<T>() != other;
 	}
 
+	bool operator != (const DynamicAny& other) const;
+		/// Inequality operator  specialization for DynamicAny
+
 	bool operator != (const char* other) const;
 		/// Inequality operator  specialization for const char*
 
@@ -387,6 +393,15 @@ private:
 };
 
 
+///
+/// inlines
+///
+
+
+///
+/// DynamicAny members
+///
+
 inline void DynamicAny::swap(DynamicAny& ptr)
 {
 	std::swap(_pHolder, ptr._pHolder);
@@ -399,7 +414,7 @@ inline const std::type_info& DynamicAny::type() const
 }
 
 
-inline DynamicAny DynamicAny::operator + (const char* other) const
+inline const DynamicAny DynamicAny::operator + (const char* other) const
 {
 	return convert<std::string>() + other;
 }
@@ -411,12 +426,24 @@ inline DynamicAny& DynamicAny::operator += (const char*other)
 }
 
 
+inline bool DynamicAny::operator == (const DynamicAny& other) const
+{
+	return convert<std::string>() == other.convert<std::string>();
+}
+
+
 inline bool DynamicAny::operator == (const char* other) const
 {
 	return convert<std::string>() == other;
 }
 
 
+inline bool DynamicAny::operator != (const DynamicAny& other) const
+{
+	return convert<std::string>() != other.convert<std::string>();
+}
+
+
 inline bool DynamicAny::operator != (const char* other) const
 {
 	return convert<std::string>() != other;
@@ -459,6 +486,98 @@ inline bool DynamicAny::isString() const
 }
 
 
+///
+/// DynamicAny non-member functions
+///
+
+template <typename T> 
+inline const DynamicAny operator + (const T& other, const DynamicAny& da)
+	/// Addition operator for adding DynamicAny to POD
+{
+	return da.convert<T>() + other;
+}
+
+
+inline const DynamicAny operator + (const char* other, const DynamicAny& da)
+	/// Addition operator for adding DynamicAny to const char*
+{
+	std::string tmp = other;
+	return other + da.convert<std::string>();
+}
+
+
+template <typename T> 
+inline const DynamicAny operator - (const T& other, const DynamicAny& da)
+	/// Subtraction operator for subtracting DynamicAny from POD
+{
+	DynamicAny tmp = other;
+	return tmp - da.convert<T>();
+}
+
+
+template <typename T> 
+inline const DynamicAny operator * (const T& other, const DynamicAny& da)
+	/// Multiplication operator for multiplying POD with DynamicAny
+{
+	return da.convert<T>() * other;
+}
+
+
+template <typename T> 
+inline const DynamicAny operator / (const T& other, const DynamicAny& da)
+	/// Division operator for dividing POD with DynamicAny
+{
+	DynamicAny tmp = other;
+	return tmp / da.convert<T>();
+}
+
+
+template <typename T> 
+inline T& operator += (T& other, const DynamicAny& da)
+	/// Addition asignment operator for addition/assignment of DynamicAny to POD.
+{
+	return other += da.convert<T>();
+}
+
+
+template <typename T> 
+inline T& operator -= (T& other, const DynamicAny& da)
+	/// Subtraction asignment operator for subtraction/assignment of DynamicAny to POD.
+{
+	return other -= da.convert<T>();
+}
+
+
+template <typename T> 
+inline T& operator *= (T& other, const DynamicAny& da)
+	/// Multiplication asignment operator for multiplication/assignment of DynamicAny to POD.
+{
+	return other *= da.convert<T>();
+}
+
+
+template <typename T> 
+inline T& operator /= (T& other, const DynamicAny& da)
+	/// Division asignment operator for division/assignment of DynamicAny to POD.
+{
+	return other /= da.convert<T>();
+}
+
+
+inline bool operator == (const std::string& other, const DynamicAny& da)
+	/// Equality operator for DynamicAny comparison to std::string
+{
+	return da.convert<std::string>() == other;
+}
+
+
+inline bool operator != (const std::string& other, const DynamicAny& da)
+	/// Equality operator for DynamicAny comparison to std::string
+{
+	return da.convert<std::string>() != other;
+}
+
+
 } // namespace Poco
 
 
diff --git a/Foundation/src/DynamicAny.cpp b/Foundation/src/DynamicAny.cpp
index ae537adff..35cd200fa 100644
--- a/Foundation/src/DynamicAny.cpp
+++ b/Foundation/src/DynamicAny.cpp
@@ -77,7 +77,7 @@ DynamicAny& DynamicAny::operator = (const DynamicAny& other)
 }
 
 
-DynamicAny DynamicAny::operator + (const DynamicAny& other) const
+const DynamicAny DynamicAny::operator + (const DynamicAny& other) const
 {
 	if (isInteger())
 	{
@@ -113,7 +113,7 @@ DynamicAny& DynamicAny::operator += (const DynamicAny& other)
 }
 
 
-DynamicAny DynamicAny::operator - (const DynamicAny& other) const
+const DynamicAny DynamicAny::operator - (const DynamicAny& other) const
 {
 	if (isInteger())
 	{
@@ -145,7 +145,7 @@ DynamicAny& DynamicAny::operator -= (const DynamicAny& other)
 }
 
 
-DynamicAny DynamicAny::operator * (const DynamicAny& other) const
+const DynamicAny DynamicAny::operator * (const DynamicAny& other) const
 {
 	if (isInteger())
 	{
@@ -177,7 +177,7 @@ DynamicAny& DynamicAny::operator *= (const DynamicAny& other)
 }
 
 
-DynamicAny DynamicAny::operator / (const DynamicAny& other) const
+const DynamicAny DynamicAny::operator / (const DynamicAny& other) const
 {
 	if (isInteger())
 	{
diff --git a/Foundation/testsuite/src/DynamicAnyTest.cpp b/Foundation/testsuite/src/DynamicAnyTest.cpp
index dd5b292c1..6e7397425 100644
--- a/Foundation/testsuite/src/DynamicAnyTest.cpp
+++ b/Foundation/testsuite/src/DynamicAnyTest.cpp
@@ -1327,16 +1327,20 @@ void DynamicAnyTest::testULong()
 	assert (a3 == 64);
 }
 
-
+	
 void DynamicAnyTest::testConversionOperator()
 {
 	DynamicAny any("42");
 	int i = any;
 	assert (i == 42);
-	
+	assert (any == i);
+
 	any = 123;
 	std::string s = any;
 	assert (s == "123");
+	assert (s == any);
+	assert (any == s);
+	assert ("123" == any);
 
 	any = 321;
 	s = any.convert<std::string>();
@@ -1344,10 +1348,29 @@ void DynamicAnyTest::testConversionOperator()
 
 	any = "456";
 	assert (any == "456");
+	assert ("456" == any);
 
 	DynamicAny any2 = "1.5";
 	double d = any2;
 	assert (d == 1.5);
+	assert (any2 == d);
+}
+
+
+void DynamicAnyTest::testComparisonOperators()
+{
+	DynamicAny any1 = 1;
+	DynamicAny any2 = "1";
+	assert (any1 == any2);
+	assert (any1 == 1);
+	assert (any1 == "1");
+	assert ("1" == any1);
+
+	any1 = "2";
+	assert (any1 != any2);
+	assert (any1 != 1);
+	assert (any1 != "1");
+	assert ("1" != any1);
 }
 
 
@@ -1357,27 +1380,42 @@ void DynamicAnyTest::testArithmeticOperators()
 	DynamicAny any2 = 2;
 	DynamicAny any3 = any1 + any2;
 	assert (any3 == 3);
+	int i = 1;
+	i += any1;
+	assert (2 == i);
 
 	any1 = 3;
+	assert ((5 - any1) == 2);
 	any2 = 5;
 	any3 = any2 - any1;
 	assert (any3 == 2);
 	any3 -= 1;
 	assert (any3 == 1);
+	i = 5;
+	i -= any1;
+	assert (2 == i);
 
 	any1 = 3;
+	assert ((5 * any1) == 15);
 	any2 = 5;
 	any3 = any1 * any2;
 	assert (any3 == 15);
 	any3 *= 3;
 	assert (any3 == 45);
+	i = 5;
+	i *= any1;
+	assert (15 == i);
 
 	any1 = 3;
+	assert ((9 / any1) == 3);
 	any2 = 9;
 	any3 = any2 / any1;
 	assert (any3 == 3);
 	any3 /= 3;
 	assert (any3 == 1);
+	i = 9;
+	i /= any1;
+	assert (3 == i);
 
 	any1 = 1.0f;
 	any2 = .5f;
@@ -1402,6 +1440,7 @@ void DynamicAnyTest::testArithmeticOperators()
 	any2 = "4";
 	any3 += any2;
 	assert (any3 == 7);
+	assert (1 + any3 == 8);
 
 	any1 = "123";
 	any2 = "456";
@@ -1410,6 +1449,7 @@ void DynamicAnyTest::testArithmeticOperators()
 	any2 = "789";
 	any3 += any2;
 	assert (any3 == "123456789");
+	assert (("xyz" + any3) == "xyz123456789");
 
 	try	{ any3 = any1 - any2; fail ("must fail"); } 
 	catch (InvalidArgumentException&){}
@@ -2054,8 +2094,9 @@ void DynamicAnyTest::testGetIdxMustThrow(DynamicAny& a1, std::vector<DynamicAny>
 {
 	try
 	{
-		DynamicAny& val1 = a1[n];
+		DynamicAny& val1 = a1[n]; 
 		fail("bad cast - must throw");
+		val1 = 0; // silence the compiler
 	}
 	catch (Poco::BadCastException&)
 	{
@@ -2064,8 +2105,9 @@ void DynamicAnyTest::testGetIdxMustThrow(DynamicAny& a1, std::vector<DynamicAny>
 	try
 	{
 		const DynamicAny& c1 = a1;
-		const DynamicAny& cval1 = c1[n];
+		const DynamicAny& cval1 = c1[n]; 
 		fail("bad const cast - must throw");
+		assert (cval1 == c1); // silence the compiler
 	}
 	catch (Poco::BadCastException&)
 	{
@@ -2103,6 +2145,7 @@ CppUnit::Test* DynamicAnyTest::suite()
 	CppUnit_addTest(pSuite, DynamicAnyTest, testLong);
 	CppUnit_addTest(pSuite, DynamicAnyTest, testULong);
 	CppUnit_addTest(pSuite, DynamicAnyTest, testConversionOperator);
+	CppUnit_addTest(pSuite, DynamicAnyTest, testComparisonOperators);
 	CppUnit_addTest(pSuite, DynamicAnyTest, testArithmeticOperators);
 	CppUnit_addTest(pSuite, DynamicAnyTest, testLimitsInt);
 	CppUnit_addTest(pSuite, DynamicAnyTest, testLimitsFloat);
diff --git a/Foundation/testsuite/src/DynamicAnyTest.h b/Foundation/testsuite/src/DynamicAnyTest.h
index d9341dd82..7990dd51c 100644
--- a/Foundation/testsuite/src/DynamicAnyTest.h
+++ b/Foundation/testsuite/src/DynamicAnyTest.h
@@ -63,6 +63,7 @@ public:
 	void testULong();
 	void testString();
 	void testConversionOperator();
+	void testComparisonOperators();
 	void testArithmeticOperators();
 	void testLimitsInt();
 	void testLimitsFloat();
@@ -96,6 +97,7 @@ private:
 		assert (val1 == expectedResult);
 
 		const Poco::DynamicAny& c1 = a1;
+		assert (a1 == c1); // silence the compiler
 		const Poco::DynamicAny& cval1 = a1[n];
 		assert (cval1 == expectedResult);
 	}