diff --git a/ast-visual-studio-extension-tests/cx-unit-tests/cx-wrapper-tests/ASCATest.cs b/ast-visual-studio-extension-tests/cx-unit-tests/cx-wrapper-tests/ASCATest.cs
index d3212bb..18b11d5 100644
--- a/ast-visual-studio-extension-tests/cx-unit-tests/cx-wrapper-tests/ASCATest.cs
+++ b/ast-visual-studio-extension-tests/cx-unit-tests/cx-wrapper-tests/ASCATest.cs
@@ -20,6 +20,7 @@ public void TestInstallAsca()
                 agent: CxConstants.EXTENSION_AGENT
             );
             Assert.NotNull(result);
+            Assert.Contains("asca engine is running successfully", result.Message);
         }
         
 
diff --git a/ast-visual-studio-extension/CxWrapper/CxWrapper.cs b/ast-visual-studio-extension/CxWrapper/CxWrapper.cs
index 597e479..994210f 100644
--- a/ast-visual-studio-extension/CxWrapper/CxWrapper.cs
+++ b/ast-visual-studio-extension/CxWrapper/CxWrapper.cs
@@ -37,24 +37,37 @@ public CxAsca ScanAsca(string fileSource, bool ascaLatestVersion = false, string
         {
             logger.Info(string.Format(CxConstants.LOG_RUNNING_ASCA_SCAN_CMD, fileSource));
 
-            List<string> arguments = new List<string>
-            {
-                CxConstants.CLI_SCAN_CMD,
-                CxConstants.CLI_ASCA_CMD,
-                CxConstants.FLAG_FILE_SOURCE,
-                fileSource
-            };
+            List<string> arguments;
 
-            if (ascaLatestVersion)
+            if (string.IsNullOrWhiteSpace(fileSource))
+            {
+                arguments = new List<string>
+        {
+            CxConstants.CLI_SCAN_CMD,
+            CxConstants.CLI_ASCA_CMD,
+            CxConstants.FLAG_ASCA_LATEST_VERSION
+        };
+            }
+            else
             {
-                arguments.Add(CxConstants.FLAG_ASCA_LATEST_VERSION);
+                arguments = new List<string>
+        {
+            CxConstants.CLI_SCAN_CMD,
+            CxConstants.CLI_ASCA_CMD,
+            CxConstants.FLAG_FILE_SOURCE,
+            fileSource
+        };
+
+                if (ascaLatestVersion)
+                {
+                    arguments.Add(CxConstants.FLAG_ASCA_LATEST_VERSION);
+                }
             }
 
             AppendAgentToArguments(agent, arguments);
 
             string result = Execution.ExecuteCommand(WithConfigArguments(arguments), Execution.CheckValidJSONString);
             return JsonConvert.DeserializeObject<CxAsca>(result);
-
         }
 
         /// <summary>