diff --git a/main.cpp b/main.cpp
index 1443675b..61c13687 100644
--- a/main.cpp
+++ b/main.cpp
@@ -16,12 +16,11 @@ int main(int argc, char *argv[]) {
 	s.text = "123";
 	s.i = -1;
 	PIVariant v = PIVariant::fromValue(s);
-	piCout << v;
-	s1 = v.value<__S__>();
-	piCout << s1.text << s1.i << v.value<int>();
-	PIPropertyStorage ps;
-	piForeachC (PIPropertyStorage::Property & p, ps)
-		;
+	PIByteArray ba;
+	ba << v;
+	PIVariant v1;
+	ba >> v1;
+	piCout << v1;
 	return 0;
 }
 
diff --git a/src/core/pipropertystorage.h b/src/core/pipropertystorage.h
index 03b07951..e2aa114d 100644
--- a/src/core/pipropertystorage.h
+++ b/src/core/pipropertystorage.h
@@ -70,4 +70,11 @@ protected:
 
 };
 
+
+inline PIByteArray & operator <<(PIByteArray & s, const PIPropertyStorage::Property & v) {s << v.name << v.value << v.comment << v.flags; return s;}
+inline PIByteArray & operator >>(PIByteArray & s, PIPropertyStorage::Property & v) {s >> v.name >> v.value >> v.comment >> v.flags; return s;}
+
+inline PIByteArray & operator <<(PIByteArray & s, const PIPropertyStorage & v) {s << v.properties(); return s;}
+inline PIByteArray & operator >>(PIByteArray & s, PIPropertyStorage & v) {s >> v.properties(); return s;}
+
 #endif // PIPROPERTYSTORAGE_H
diff --git a/src/core/pivariant.h b/src/core/pivariant.h
index 91bb8010..4bd234e4 100755
--- a/src/core/pivariant.h
+++ b/src/core/pivariant.h
@@ -142,6 +142,8 @@ classname_to __PIVariantFunctions__<classname_from>::castVariant<classname_to>(c
 
 class PIP_EXPORT PIVariant {
 	friend PICout operator <<(PICout s, const PIVariant & v);
+	friend PIByteArray & operator <<(PIByteArray & s, const PIVariant & v);
+	friend PIByteArray & operator >>(PIByteArray & s, PIVariant & v);
 public:
 
 	//! Type of %PIVariant content
@@ -611,6 +613,36 @@ REGISTER_VARIANT(PIDate)
 REGISTER_VARIANT(PIDateTime)
 REGISTER_VARIANT(PISystemTime)
 
+inline PIByteArray & operator <<(PIByteArray & s, const PIVariant & v) {
+	s << v._content << int(v._type);
+	if (v._type == PIVariant::pivCustom) {
+#ifdef CUSTOM_PIVARIANT
+		if (v._info) {
+			s << v._info->typeName;
+		} else {
+			s << PIStringAscii("");
+		}
+#else
+		s << PIStringAscii("");
+#endif
+	}
+	return s;
+}
+inline PIByteArray & operator >>(PIByteArray & s, PIVariant & v) {
+	int t(0);
+	s >> v._content >> t;
+	v._type = (PIVariant::Type)t;
+	if (v._type == PIVariant::pivCustom) {
+		PIString tn;
+		s >> tn;
+#ifdef CUSTOM_PIVARIANT
+		PIByteArray vc = v._content;
+		v = PIVariant::fromValue(vc, tn);
+#endif
+	}
+	return s;
+}
+
 inline PICout operator <<(PICout s, const PIVariant & v) {
 	s.space(); s.setControl(0, true);
 	s << "PIVariant(" << v.typeName() << ", " << v.toString() << ")";