diff --git a/sources/MVCFramework.RESTClient.pas b/sources/MVCFramework.RESTClient.pas
index 9da756e1..56dd2dcf 100644
--- a/sources/MVCFramework.RESTClient.pas
+++ b/sources/MVCFramework.RESTClient.pas
@@ -725,7 +725,9 @@ end;
 function TMVCRESTClient.AddFile(const aName: string; aFileStreamValue: TStream; const aFileName, aContentType: string): IMVCRESTClient;
 begin
   Result := Self;
+{$WARNINGS OFF}
   GetBodyFormData.AddStream(aName, aFileStreamValue, aFileName, aContentType);
+{$WARNINGS ON}
   SetContentType(TMVCMediaType.MULTIPART_FORM_DATA);
 end;
 {$ENDIF}
diff --git a/sources/MVCFramework.Serializer.JsonDataObjects.pas b/sources/MVCFramework.Serializer.JsonDataObjects.pas
index a5078f00..acac02de 100644
--- a/sources/MVCFramework.Serializer.JsonDataObjects.pas
+++ b/sources/MVCFramework.Serializer.JsonDataObjects.pas
@@ -292,20 +292,20 @@ end;
 procedure TMVCJsonDataObjectsSerializer.AfterConstruction;
 var
   lStreamSerializer: IMVCTypeSerializer;
-  lDataSetHolderSerializer: TMVCDataSetHolderSerializer;
   fObjectDictionarySerializer: TMVCObjectDictionarySerializer;
 begin
   inherited AfterConstruction;
-  lDataSetHolderSerializer := TMVCDataSetHolderSerializer.Create;
-  GetTypeSerializers.Add(TypeInfo(TDataSetHolder), lDataSetHolderSerializer);
   lStreamSerializer := TMVCStreamSerializerJsonDataObject.Create;
   GetTypeSerializers.Add(TypeInfo(TStream), lStreamSerializer);
   GetTypeSerializers.Add(TypeInfo(TStringStream), lStreamSerializer);
   GetTypeSerializers.Add(TypeInfo(TFileStream), lStreamSerializer);
   GetTypeSerializers.Add(TypeInfo(TMemoryStream), lStreamSerializer);
+  GetTypeSerializers.Add(TypeInfo(TBytesStream), lStreamSerializer);
+
   fStringDictionarySerializer := TMVCStringDictionarySerializer.Create;
   GetTypeSerializers.Add(TypeInfo(TMVCStringDictionary), fStringDictionarySerializer);
   GetTypeSerializers.Add(TypeInfo(TGUID), TMVCGUIDSerializer.Create);
+
   fObjectDictionarySerializer := TMVCObjectDictionarySerializer.Create(self);
   GetTypeSerializers.Add(TypeInfo(TMVCObjectDictionary), fObjectDictionarySerializer);
   GetTypeSerializers.Add(TypeInfo(TMVCListOfString { TList<string> } ), TMVCListOfStringSerializer.Create);