diff --git a/Units/MMLAddon/mmlpsthread.pas b/Units/MMLAddon/mmlpsthread.pas
index 292444c..08be9ce 100644
--- a/Units/MMLAddon/mmlpsthread.pas
+++ b/Units/MMLAddon/mmlpsthread.pas
@@ -185,6 +185,7 @@ type
         function RequireFile(Sender: TObject; const OriginFileName: String;
                             var FileName, OutPut: string): Boolean;
         function FileAlreadyIncluded(Sender: TObject; FileName: string): Boolean;
+        function OnIncludingFile(Sender: TObject; FileName: string): Boolean;
 
         procedure OnCompImport(Sender: TObject; x: TPSPascalCompiler);
         procedure OnExecImport(Sender: TObject; se: TPSExec; x: TPSRuntimeClassImporter);
@@ -425,7 +426,9 @@ begin
     Exit;
   end;
   filename := path;//Yeah!
-  Includes.Add(path);
+
+  if Includes.IndexOf(path) = -1 then
+    Includes.Add(path);
 
   try
     f:= TFileStream.Create(UTF8ToSys(Path), fmOpenRead);
@@ -615,6 +618,7 @@ begin
   PSScript.UsePreProcessor:= True;
   PSScript.CompilerOptions := PSScript.CompilerOptions + [icBooleanShortCircuit];
   PSScript.OnNeedFile := @RequireFile;
+  PSScript.OnIncludingFile := @OnIncludingFile;
   PSScript.OnFileAlreadyIncluded := @FileAlreadyIncluded;
   PSScript.OnProcessDirective:=@OnProcessDirective;
   PSScript.OnProcessUnknowDirective:=@PSScriptProcessUnknownDirective;
@@ -742,9 +746,12 @@ var
   path: string;
   i: integer;
 begin
+  { XXX/TODO: Why not just use path := ExpandFileNameUTF8(FileName); }
   path := FindFile(Filename,[ScriptPath,IncludePath]);
+  path := ExpandFileNameUTF8(path);
+
   if (path <> '') then
-    if Includes.Find(path,i) then
+    if Includes.IndexOf(path) <> -1 then
     begin
       {$IFDEF SIMBA_VERBOSE}
       psWriteln('Include_Once file already included:' + Path);
@@ -753,10 +760,31 @@ begin
       Exit;
     end;
 
+  {$IFDEF SIMBA_VERBOSE}
+  writeln('OnFileAlreadyIncluded, Adding: ' + path);
+  {$ENDIF}
   Includes.Add(path);
   Result := False;
 end;
 
+function TPSThread.OnIncludingFile(Sender: TObject; FileName: string): Boolean;
+var
+  path: string;
+begin
+  path := FindFile(Filename,[ScriptPath,IncludePath]);
+  path := ExpandFileNameUTF8(path);
+
+  if Includes.IndexOf(path) = -1 then
+  begin
+    {$IFDEF SIMBA_VERBOSE}
+    writeln('OnIncludingFile, Adding: ' + path);
+    {$ENDIF}
+    Includes.Add(path);
+  end;
+
+  Result := True; // Not used
+end;
+
 procedure SIRegister_Mufasa(cl: TPSPascalCompiler);
 begin
   SIRegister_MML(cl);
diff --git a/Units/PascalScript/uPSComponent.pas b/Units/PascalScript/uPSComponent.pas
index 78166a6..232a68a 100644
--- a/Units/PascalScript/uPSComponent.pas
+++ b/Units/PascalScript/uPSComponent.pas
@@ -95,6 +95,7 @@ type
 
   { Added by Wizzup }
   TPSOnFileAlreadyIncluded = function (Sender: TObject; FileName: tbtstring): Boolean of object;
+  TPSOnIncludingFile = function (Sender: TObject; FileName: tbtstring): Boolean of object;
   { Wizzup out }
 
   TPSOnProcessDirective = procedure (
@@ -127,6 +128,7 @@ type
     FOnNeedFile: TPSOnNeedFile;
     { Added by Wizzup }
     FOnFileAlreadyIncluded: TPSOnFileAlreadyIncluded;
+    FOnIncludingFile: TPSOnIncludingFile;
     { Wizzup out }
     FUsePreProcessor: Boolean;
     FDefines: TStrings;
@@ -162,6 +164,7 @@ type
     function  DoOnNeedFile (Sender: TObject; const OrginFileName: tbtstring; var FileName, Output: tbtstring): Boolean; virtual;
     { Added by Wizzup }
     function  DoOnFileAlreadyIncluded (Sender: TObject; FileName: tbtstring): Boolean; virtual;
+    function  DoOnIncludingFile (Sender: TObject; FileName: tbtstring): Boolean; virtual;
     { Wizzup out }
     function  DoOnUnknowUses (Sender: TPSPascalCompiler; const Name: tbtstring): Boolean; virtual; // return true if processed
     procedure DoOnCompImport; virtual;
@@ -300,6 +303,7 @@ type
 
     { Added by Wizzup }
     property OnFileAlreadyIncluded: TPSOnFileAlreadyIncluded read FOnFileAlreadyIncluded write FOnFileAlreadyIncluded;
+    property OnIncludingFile: TPSOnIncludingFile read FOnIncludingFile write FOnIncludingFile;
     { Wizzup out }
 
     property Defines: TStrings read FDefines write SetDefines;
@@ -557,6 +561,11 @@ function CEOnFileAlreadyIncluded(Sender: TPSPreProcessor; FileName: tbtstring):
 begin
   Result := TPSScript (Sender.ID).DoOnFileAlreadyIncluded(Sender.ID, Filename);
 end;
+
+function CEOnIncludingFile(Sender: TPSPreProcessor; FileName: tbtstring): Boolean;
+begin
+  Result := TPSScript (Sender.ID).DoOnIncludingFile(Sender.ID, Filename);
+end;
 { Wizzup out }
 
 procedure CompTranslateLineInfo(Sender: TPSPascalCompiler; var Pos, Row, Col: Cardinal; var Name: tbtstring);
@@ -675,6 +684,7 @@ begin
 
   { Added by Wizzup }
   FPP.OnFileAlreadyIncluded:= CEOnFileAlreadyIncluded;
+  FPP.OnIncludingFile:= CEOnIncludingFile;
   { Wizzup out }
 
   FDefines := TStringList.Create;
@@ -1088,6 +1098,15 @@ begin
   else
     Result := False;
 end;
+
+function TPSScript.DoOnIncludingFile(Sender: TObject;
+  FileName: tbtstring): Boolean;
+begin
+  If Assigned (OnIncludingFile) then
+    Result := OnIncludingFile(Sender, FileName)
+  else
+    Result := False;
+end;
 { Wizzup out }
 
 function TPSScript.DoOnUnknowUses(Sender: TPSPascalCompiler;
diff --git a/Units/PascalScript/uPSPreProcessor.pas b/Units/PascalScript/uPSPreProcessor.pas
index c71e912..0867db1 100644
--- a/Units/PascalScript/uPSPreProcessor.pas
+++ b/Units/PascalScript/uPSPreProcessor.pas
@@ -17,6 +17,7 @@ type
 
   { Added by Wizzup }
   TPSOnFileAlreadyIncluded = function (Sender: TPSPreProcessor; FileName: tbtstring): Boolean;
+  TPSOnIncludingFile = function (Sender: TPSPreProcessor; FileName: tbtstring): Boolean;
   { Wizzup out }
 
   TPSOnProcessDirective = procedure (
@@ -99,6 +100,7 @@ type
     FOnNeedFile: TPSOnNeedFile;
     { Added by Wizzup }
     FOnFileAlreadyIncluded: TPSOnFileAlreadyIncluded;
+    FOnIncludingFile: TPSOnIncludingFile;
     { Wizzup out }
     FAddedPosition: Cardinal;
     FDefineState: TPSDefineStates;
@@ -120,6 +122,7 @@ type
 
     { Added by Wizzup }
     property OnFileAlreadyIncluded: TPSOnFileAlreadyIncluded read FOnFileAlreadyIncluded write FOnFileAlreadyIncluded;
+    property OnIncludingFile: TPSOnIncludingFile read FOnIncludingFile write FOnIncludingFile;
     { Wizzup out }
 
     property Defines: TStringList read FDefines write FDefines;
@@ -633,6 +636,8 @@ begin
           begin
             if FDefineState.DoWrite then
             begin
+              if assigned(@OnIncludingFile) then
+                OnIncludingFile(self, s);
               FAddedPosition := 0;
               IntPreProcess(Level +1, FileName, s, Dest);
               FCurrentLineInfo.Current := current;
@@ -646,7 +651,7 @@ begin
                  raise EPSPreProcessor.CreateFmt(RPS_IncludeOnceNotFound, [FileName, OrgFileName])
               else
               begin
-                if not OnFileAlreadyIncluded(Self, FileName) then
+                if not OnFileAlreadyIncluded(Self, s) then
                 begin
                   FAddedPosition := 0;
                   IntPreProcess(Level +1, FileName, s, Dest);