diff --git a/code/nel/include/nel/gui/interface_property.h b/code/nel/include/nel/gui/interface_property.h
index 4ed6e701e..b506ec7a9 100644
--- a/code/nel/include/nel/gui/interface_property.h
+++ b/code/nel/include/nel/gui/interface_property.h
@@ -72,8 +72,8 @@ namespace NLGUI
 		bool link( NLMISC::CCDBNodeBranch *dbNode, const std::string &leafId, NLMISC::CCDBNodeLeaf *defaultLeaf = NULL  );
 
 		/// float operations
-		void setDouble (double value) {setSInt64((sint64&) value);}
-		double getDouble () const {sint64 i = getSInt64(); return (double &) i;	}
+		void setDouble(double value);
+		double getDouble() const;
 		void readDouble (const char* value, const std::string& id);
 
 		/// sint32 operations
diff --git a/code/nel/include/nel/misc/cdb_leaf.h b/code/nel/include/nel/misc/cdb_leaf.h
index e3df6f8b3..c80ec903a 100644
--- a/code/nel/include/nel/misc/cdb_leaf.h
+++ b/code/nel/include/nel/misc/cdb_leaf.h
@@ -40,20 +40,20 @@ public:
 
 
 	/// Return the value of the property.
-	inline sint64 getValue64() { return _Property; }
+	inline sint64 getValue64() const { return _Property; }
 
 	/// Set the value of the property (set '_Changed' flag with 'true').
 	void setValue64 (sint64 prop);
 
-	inline sint32 getValue32() { return *((sint32*)&_Property); }
+	inline sint32 getValue32() const { return (sint32)(_Property & 0xffffffff); }
 	void setValue32 (sint32 prop);
-	inline sint16 getValue16() { return *((sint16*)&_Property); }
+	inline sint16 getValue16() const { return (sint16)(_Property & 0xffff); }
 	void setValue16 (sint16 prop);
-	inline sint8 getValue8() { return *((sint8*)&_Property); }
+	inline sint8 getValue8() const { return (sint8)(_Property & 0xff); }
 	void setValue8 (sint8 prop);
-	inline bool getValueBool() { return (_Property!=(sint64)0 ); }
+	inline bool getValueBool() const { return (_Property!=(sint64)0 ); }
 	void setValueBool (bool prop);
-	inline CRGBA getValueRGBA()
+	inline CRGBA getValueRGBA() const
 	{
 		CRGBA col;
 		col.R = (uint8)(_Property&0xff);
@@ -65,11 +65,11 @@ public:
 	void setValueRGBA (const CRGBA &color);
 
 	/// Return the value of the property before the database change
-	inline sint64 getOldValue64() { return _oldProperty; }
-	inline sint32 getOldValue32() { return *((sint32*)&_oldProperty); }
-	inline sint16 getOldValue16() { return *((sint16*)&_oldProperty); }
-	inline sint8 getOldValue8() { return *((sint8*)&_oldProperty); }
-	inline bool getOldValueBool() { return (_oldProperty!=(sint64)0 ); }
+	inline sint64 getOldValue64() const { return _oldProperty; }
+	inline sint32 getOldValue32() const { return (sint32)(_oldProperty & 0xffffffff); }
+	inline sint16 getOldValue16() const { return (sint16)(_oldProperty & 0xffff); }
+	inline sint8 getOldValue8() const { return (sint8)(_oldProperty & 0xff); }
+	inline bool getOldValueBool() const { return (_oldProperty!=(sint64)0 ); }
 
 
 	/// Return the type of the property.
diff --git a/code/nel/src/gui/interface_property.cpp b/code/nel/src/gui/interface_property.cpp
index 694bd6c36..8715b0f2f 100644
--- a/code/nel/src/gui/interface_property.cpp
+++ b/code/nel/src/gui/interface_property.cpp
@@ -26,6 +26,12 @@ using namespace std;
 
 namespace NLGUI
 {
+	// helper to convert double <> sint64
+	union C64BitsParts
+	{
+		sint64 i64;
+		double d;
+	};
 
 	bool CInterfaceProperty::link( CCDBNodeLeaf *dbNode )
 	{
@@ -66,6 +72,20 @@ namespace NLGUI
 	}
 
 
+	void CInterfaceProperty::setDouble(double value)
+	{
+		C64BitsParts parts;
+		parts.d = value;
+		setSInt64(parts.i64);
+	}
+
+	double CInterfaceProperty::getDouble() const
+	{
+		C64BitsParts parts;
+		parts.i64 = getSInt64();
+		return parts.d;
+	}
+
 	// *****************
 	// sint64 operations
 	// *****************
@@ -104,10 +124,9 @@ namespace NLGUI
 		if ( isdigit(*ptr) || *ptr=='-')
 		{
 			_VolatileValue = NLGUI::CDBManager::getInstance()->getDbProp(id);
-			double buf;
-			fromString(ptr, buf);
-			sint64 i = *(sint64*)&buf;
-			_VolatileValue->setValue64( i );
+			C64BitsParts buf;
+			fromString(ptr, buf.d);
+			_VolatileValue->setValue64(buf.i64);
 		}
 		else
 		{
diff --git a/code/ryzom/server/src/pd_lib/pd_messages.h b/code/ryzom/server/src/pd_lib/pd_messages.h
index 25ea12c4b..41e2c2db2 100644
--- a/code/ryzom/server/src/pd_lib/pd_messages.h
+++ b/code/ryzom/server/src/pd_lib/pd_messages.h
@@ -578,8 +578,8 @@ public:
 	sint16						asSint16() const			{ return (sint16)_Value1[0]; }
 	sint32						asSint32() const			{ return (sint32)_Value2[0]; }
 	sint64						asSint64() const			{ return (sint64)_Value3[0]; }
-	float						asFloat() const				{ return *(float*)(&_Value2[0]); }
-	double						asDouble() const			{ return *(double*)(&_Value3[0]); }
+	float						asFloat() const				{ return (float)_ValueFloat[0]; }
+	double						asDouble() const			{ return (double)_ValueDouble[0]; }
 	const NLMISC::CSheetId&		asSheetId() const			{ return *(NLMISC::CSheetId*)(&_Value2[0]); }
 	const NLMISC::CEntityId&	asEntityId() const			{ return *(NLMISC::CEntityId*)(&_Value3[0]); }
 
@@ -668,6 +668,8 @@ private:
 		uint16				_Value1[4];
 		uint32				_Value2[2];
 		uint64				_Value3[1];
+		float				_ValueFloat[2];
+		double				_ValueDouble[1];
 	};
 
 	bool					_ObjectIdPresent;