diff --git a/Source/General/Extras.vb b/Source/General/Extras.vb
index 698555b9..5dabca0d 100644
--- a/Source/General/Extras.vb
+++ b/Source/General/Extras.vb
@@ -169,7 +169,7 @@ Class MTN
                 Proc.SkipStrings = {"frame=", "size="}
                 Proc.Encoding = Encoding.UTF8
                 Proc.Package = Package.MTN
-                Proc.AllowedExitCodes = {1}
+                Proc.AllowedExitCodes = {0, 1}
                 Proc.Arguments = """" + inputFile + """" + " -c " & Col & " -r " & Rows &
                     " -h " & SizeHeight & " -w " & SizeWidth & " -j " & PictureQuality &
                     " -D " & PictureDepth & " -P " & " -O " & """" & DirectoryLocation & """"
@@ -180,8 +180,8 @@ Class MTN
                 Proc.Header = "Creating Thumbnail"
                 Proc.SkipStrings = {"frame=", "size="}
                 Proc.Encoding = Encoding.UTF8
-                Proc.AllowedExitCodes = {1}
                 Proc.Package = Package.MTN
+                Proc.AllowedExitCodes = {0, 1}
                 Proc.Arguments = """" + inputFile + """" + " -c " & Col & " -r " & Rows &
                     " -h " & SizeHeight & " -w " & SizeWidth & " -j " & PictureQuality & " -D " & PictureDepth & " -P "
                 Proc.Start()
diff --git a/Source/General/Proc.vb b/Source/General/Proc.vb
index 61507c81..4a92487c 100644
--- a/Source/General/Proc.vb
+++ b/Source/General/Proc.vb
@@ -339,12 +339,12 @@ Public Class Proc
                     Throw New SkipException
                 End If
 
-                If Not AllowedExitCodes.ContainsEx(ExitCode) Then
-                    Dim errOutput = ProcessHelp.GetConsoleOutput(Package.Err.Path, "/ntstatus.h /winerror.h " & ExitCode)
+                If ExitCode > 0 AndAlso Not AllowedExitCodes.ContainsEx(ExitCode) Then
                     Dim sb = New StringBuilder()
                     sb.Append($"{Header} returned exit code: {ExitCode} (0x{ExitCode:X})")
 
                     If s.ErrorMessageExtendedByErr Then
+                        Dim errOutput = ProcessHelp.GetConsoleOutput(Package.Err.Path, "/ntstatus.h /vfw.h /winerror.h " & ExitCode)
                         sb.Append($"{BR2}It's unclear what this exit code means, in case it's")
                         sb.Append($"{BR}a Windows system error then it possibly means:")
                         sb.Append($"{BR2}{errOutput}")