diff --git a/trunk/ProcessHacker.Native/Api/Functions.cs b/trunk/ProcessHacker.Native/Api/Functions.cs
index 828f23525..cc20a37c3 100644
--- a/trunk/ProcessHacker.Native/Api/Functions.cs
+++ b/trunk/ProcessHacker.Native/Api/Functions.cs
@@ -126,7 +126,7 @@ namespace ProcessHacker.Native.Api
         /// </summary>
         /// <param name="name">The process.exe or the path\process.exe to be excluded</param>
         /// <returns>True if successfully excluded</returns>
-        [DllImport("faultrep.dll", CharSet = CharSet.Unicode)]
+        [DllImport("faultrep.dll", CharSet = CharSet.Unicode, SetLastError = true)]
         public static extern bool AddERExcludedApplication(
             [In] string ExeName
             );
diff --git a/trunk/ProcessHacker/Program/Program.cs b/trunk/ProcessHacker/Program/Program.cs
index 82d094355..d5525cd26 100644
--- a/trunk/ProcessHacker/Program/Program.cs
+++ b/trunk/ProcessHacker/Program/Program.cs
@@ -131,7 +131,9 @@ namespace ProcessHacker
             {
                 if (!Native.Api.Win32.AddERExcludedApplication(AppDomain.CurrentDomain.FriendlyName))
                 {
-                    PhUtils.ShowWarning("Process Hacker was not excluded from Windows Error Reporting");
+                    PhUtils.ShowWarning(
+                        "Process Hacker was not excluded from Windows Error Reporting: " + 
+                        Win32.GetLastErrorMessage());
                 }
             }
             else