diff --git a/dotnet/src/dotnetframework/GxClasses/Core/Web/GxHttpServer.cs b/dotnet/src/dotnetframework/GxClasses/Core/Web/GxHttpServer.cs
index 1af295604..92b8ffe18 100644
--- a/dotnet/src/dotnetframework/GxClasses/Core/Web/GxHttpServer.cs
+++ b/dotnet/src/dotnetframework/GxClasses/Core/Web/GxHttpServer.cs
@@ -401,7 +401,10 @@ public override string ToString()
 #if NETCORE
 			return _httpReq.GetRawBodyString();
 #else
-			return (new StreamReader(_httpReq.InputStream)).ReadToEnd();
+			using (StreamReader reader = new StreamReader(_httpReq.InputStream))
+			{
+				return reader.ReadToEnd();
+			}
 #endif
 		}
 		public void ToFile(string FileName)
diff --git a/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttp.cs b/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttp.cs
index 027984fae..dc19f61e9 100644
--- a/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttp.cs
+++ b/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttp.cs
@@ -986,7 +986,12 @@ public virtual void webAjaxEvent()
 			if (context.IsMultipartRequest)
 				jsonRequest = cgiGet(GX_AJAX_MULTIPART_ID);
 			else
-				jsonRequest = (new StreamReader(localHttpContext.Request.GetInputStream())).ReadToEnd();
+			{
+				using (StreamReader reader = new StreamReader(localHttpContext.Request.GetInputStream()))
+				{
+					jsonRequest = reader.ReadToEnd();
+				}
+			}
 			string jsonResponse = dynAjaxEvent.Invoke(jsonRequest, this);
 
 
diff --git a/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttpServices.cs b/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttpServices.cs
index 0770d1300..a90480cdd 100644
--- a/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttpServices.cs
+++ b/dotnet/src/dotnetframework/GxClasses/Middleware/GXHttpServices.cs
@@ -73,11 +73,15 @@ public override void webExecute()
 			{
 				HttpRequest req = context.HttpContext.Request;
 				string gxobj = GetNextPar().ToLower();
-				string jsonStr = (new StreamReader(req.GetInputStream())).ReadToEnd();
 				GxSimpleCollection<JArray> parmsColl = new GxSimpleCollection<JArray>();
-				if (!string.IsNullOrEmpty(jsonStr))
+
+				using (StreamReader stream = new StreamReader(req.GetInputStream()))
 				{
-					parmsColl.FromJSonString(jsonStr);
+					string jsonStr = stream.ReadToEnd();
+					if (!string.IsNullOrEmpty(jsonStr))
+					{
+						parmsColl.FromJSonString(jsonStr);
+					}
 				}
 #if NETCORE
 
@@ -286,8 +290,8 @@ public override void webExecute()
 				{
 					localHttpContext.Response.ContentType = MediaTypesNames.TextPlain;
 					var r = new List<UploadFile>();
-					var fileCount = localHttpContext.Request.GetFileCount();
-					for (var i = 0; i < fileCount; i++)
+					int fileCount = localHttpContext.Request.GetFileCount();
+					for (int i = 0; i < fileCount; i++)
 					{
 						string fileGuid = GxUploadHelper.GetUploadFileGuid();
 						string fileToken = GxUploadHelper.GetUploadFileId(fileGuid);
@@ -321,7 +325,7 @@ public override void webExecute()
 						GxUploadHelper.CacheUploadFile(fileGuid, Path.GetFileName(fName), ext, gxFile, context);
 					}
 					UploadFilesResult result = new UploadFilesResult() { files = r };
-					var jsonObj = JSONHelper.Serialize(result);
+					string jsonObj = JSONHelper.Serialize(result);
 					localHttpContext.Response.Write(jsonObj);
 				}
 				else