diff --git a/rtl/inc/ustringh.inc b/rtl/inc/ustringh.inc
index 4d28986933..6e4e76afe7 100644
--- a/rtl/inc/ustringh.inc
+++ b/rtl/inc/ustringh.inc
@@ -50,7 +50,7 @@ Type
   { hooks for internationalization
     please add new procedures at the end, it makes it easier to detect new procedures }
   TUnicodeStringManager = record
-    Wide2AnsiMoveProc : procedure(source:pwidechar;var dest:ansistring;len:SizeInt);
+    Wide2AnsiMoveProc : procedure(source:pwidechar;var dest:ansistring;cp : TSystemCodePage;len:SizeInt);
     Ansi2WideMoveProc : procedure(source:pchar;var dest:widestring;len:SizeInt);
 
 //    UpperUTF8 : procedure(p:PUTF8String);
@@ -92,7 +92,7 @@ Type
     ThreadFiniProc : procedure;
 
     { this is only different on windows }
-    Unicode2AnsiMoveProc : procedure(source:punicodechar;var dest:ansistring;len:SizeInt);
+    Unicode2AnsiMoveProc : procedure(source:punicodechar;var dest:ansistring;cp : TSystemCodePage;len:SizeInt);
     Ansi2UnicodeMoveProc : procedure(source:pchar;var dest:unicodestring;len:SizeInt);
     UpperUnicodeStringProc : function(const S: UnicodeString): UnicodeString;
     LowerUnicodeStringProc : function(const S: UnicodeString): UnicodeString;
diff --git a/rtl/inc/ustrings.inc b/rtl/inc/ustrings.inc
index 8cb57ce0ac..f25e9747cf 100644
--- a/rtl/inc/ustrings.inc
+++ b/rtl/inc/ustrings.inc
@@ -59,7 +59,7 @@ Const
   These routines can be overwritten for the Current Locale
 }
 
-procedure DefaultUnicode2AnsiMove(source:punicodechar;var dest:ansistring;len:SizeInt);
+procedure DefaultUnicode2AnsiMove(source:punicodechar;var dest:ansistring;cp : TSystemCodePage;len:SizeInt);
 var
   i : SizeInt;
   p : PAnsiChar;
@@ -188,7 +188,7 @@ begin
       PUnicodeRec(P)^.Len:=Len*2;     { Initial length }
       PUnicodeRec(P)^.Ref:=1;         { Initial Refcount }
       PUnicodeRec(P)^.CodePage:=DefaultUnicodeCodePage;
-      PUnicodeRec(P)^.ElementSize:=SizeOf(UnicodeChar);      
+      PUnicodeRec(P)^.ElementSize:=SizeOf(UnicodeChar);
       PUnicodeRec(P)^.First:=#0;      { Terminating #0 }
       inc(p,UnicodeFirstOff);         { Points to string now }
     end
@@ -286,7 +286,7 @@ begin
     begin
       If Size>high(res) then
         Size:=high(res);
-      widestringmanager.Unicode2AnsiMoveProc(PUnicodeChar(S2),temp,Size);
+      widestringmanager.Unicode2AnsiMoveProc(PUnicodeChar(S2),temp,DefaultSystemCodePage,Size);
       res:=temp;
     end;
 end;
@@ -311,7 +311,7 @@ begin
 end;
 
 
-Function fpc_UnicodeStr_To_AnsiStr (const S2 : UnicodeString): AnsiString; compilerproc;
+Function fpc_UnicodeStr_To_AnsiStr (const S2 : UnicodeString;cp : TSystemCodePage): AnsiString; compilerproc;
 {
   Converts a UnicodeString to an AnsiString
 }
@@ -321,7 +321,7 @@ begin
   result:='';
   Size:=Length(S2);
   if Size>0 then
-    widestringmanager.Unicode2AnsiMoveProc(PUnicodeChar(Pointer(S2)),result,Size);
+    widestringmanager.Unicode2AnsiMoveProc(PUnicodeChar(Pointer(S2)),result,cp,Size);
 end;
 
 
@@ -353,7 +353,7 @@ Function fpc_WideStr_To_UnicodeStr (Const S2 : WideString): UnicodeString; compi
   end;
 
 
-Function fpc_PUnicodeChar_To_AnsiStr(const p : punicodechar): ansistring; compilerproc;
+Function fpc_PUnicodeChar_To_AnsiStr(const p : punicodechar;cp : TSystemCodePage): ansistring; compilerproc;
 var
   Size : SizeInt;
 begin
@@ -362,7 +362,7 @@ begin
     exit;
   Size := IndexWord(p^, -1, 0);
   if Size>0 then
-    widestringmanager.Unicode2AnsiMoveProc(P,result,Size);
+    widestringmanager.Unicode2AnsiMoveProc(P,result,cp,Size);
 end;
 
 
@@ -430,14 +430,14 @@ begin
   Size:=IndexWord(p^, high(PtrInt), 0);
   if Size>0 then
     begin
-      widestringmanager.Unicode2AnsiMoveProc(p,temp,Size);
+      widestringmanager.Unicode2AnsiMoveProc(p,temp,DefaultSystemCodePage,Size);
       res:=temp;
     end;
 end;
 {$endif FPC_STRTOSHORTSTRINGPROC}
 
 
-Function fpc_PWideChar_To_AnsiStr(const p : pwidechar): ansistring; compilerproc;
+Function fpc_PWideChar_To_AnsiStr(const p : pwidechar;cp : TSystemCodePage): ansistring; compilerproc;
 var
   Size : SizeInt;
 begin
@@ -446,7 +446,7 @@ begin
     exit;
   Size := IndexWord(p^, -1, 0);
   if Size>0 then
-    widestringmanager.Wide2AnsiMoveProc(P,result,Size);
+    widestringmanager.Wide2AnsiMoveProc(P,result,cp,Size);
 end;
 
 
@@ -478,7 +478,7 @@ begin
   Size:=IndexWord(p^, high(PtrInt), 0);
   if Size>0 then
     begin
-      widestringmanager.Wide2AnsiMoveProc(p,temp,Size);
+      widestringmanager.Wide2AnsiMoveProc(p,temp,DefaultSystemCodePage,Size);
       res:=temp;
     end;
 end;
@@ -696,7 +696,7 @@ Function fpc_UChar_To_Char(const c : UnicodeChar): Char; compilerproc;
 var
   s: ansistring;
 begin
-  widestringmanager.Unicode2AnsiMoveProc(@c, s, 1);
+  widestringmanager.Unicode2AnsiMoveProc(@c, s, DefaultSystemCodePage, 1);
   if length(s)=1 then
     fpc_UChar_To_Char:= s[1]
   else
@@ -730,7 +730,7 @@ Function fpc_WChar_To_Char(const c : WideChar): Char; compilerproc;
 var
   s: ansistring;
 begin
-  widestringmanager.Wide2AnsiMoveProc(@c, s, 1);
+  widestringmanager.Wide2AnsiMoveProc(@c, s, DefaultSystemCodePage, 1);
   if length(s)=1 then
     fpc_WChar_To_Char:= s[1]
   else
@@ -757,7 +757,7 @@ procedure fpc_WChar_To_ShortStr(out res : shortstring;const c : WideChar) compil
 var
   s: ansistring;
 begin
-  widestringmanager.Wide2AnsiMoveProc(@c,s,1);
+  widestringmanager.Wide2AnsiMoveProc(@c,s,DefaultSystemCodePage,1);
   res:=s;
 end;
 {$endif FPC_STRTOSHORTSTRINGPROC}
@@ -773,12 +773,12 @@ begin
 end;
 
 
-Function fpc_UChar_To_AnsiStr(const c : UnicodeChar): AnsiString; compilerproc;
+Function fpc_UChar_To_AnsiStr(const c : UnicodeChar;cp : TSystemCodePage): AnsiString; compilerproc;
 {
   Converts a UnicodeChar to a AnsiString;
 }
 begin
-  widestringmanager.Unicode2AnsiMoveProc(@c, fpc_UChar_To_AnsiStr, 1);
+  widestringmanager.Unicode2AnsiMoveProc(@c, fpc_UChar_To_AnsiStr, cp, 1);
 end;
 
 
@@ -801,7 +801,7 @@ procedure fpc_UChar_To_ShortStr(out res : shortstring;const c : UnicodeChar) com
 var
   s: ansistring;
 begin
-  widestringmanager.Unicode2AnsiMoveProc(@c,s,1);
+  widestringmanager.Unicode2AnsiMoveProc(@c,s,DefaultSystemCodePage,1);
   res:=s;
 end;
 {$endif FPC_STRTOSHORTSTRINGPROC}
@@ -892,12 +892,12 @@ begin
     end
   else
     len:=l;
-  widestringmanager.Unicode2AnsiMoveProc (punicodechar(@arr),temp,len);
+  widestringmanager.Unicode2AnsiMoveProc (punicodechar(@arr),temp,DefaultSystemCodePage,len);
   res:=temp;
 end;
 {$endif FPC_STRTOSHORTSTRINGPROC}
 
-Function fpc_UnicodeCharArray_To_AnsiStr(const arr: array of unicodechar; zerobased: boolean = true): AnsiString; compilerproc;
+Function fpc_UnicodeCharArray_To_AnsiStr(const arr: array of unicodechar; cp : TSystemCodePage;zerobased: boolean = true): AnsiString; compilerproc;
 var
   i  : SizeInt;
 begin
@@ -910,7 +910,7 @@ begin
   else
     i := high(arr)+1;
   SetLength(fpc_UnicodeCharArray_To_AnsiStr,i);
-  widestringmanager.Unicode2AnsiMoveProc (punicodechar(@arr),fpc_UnicodeCharArray_To_AnsiStr,i);
+  widestringmanager.Unicode2AnsiMoveProc (punicodechar(@arr),fpc_UnicodeCharArray_To_AnsiStr,cp,i);
 end;
 
 
@@ -999,12 +999,12 @@ begin
     end
   else
     len:=l;
-  widestringmanager.Wide2AnsiMoveProc (pwidechar(@arr),temp,len);
+  widestringmanager.Wide2AnsiMoveProc (pwidechar(@arr),temp,DefaultSystemCodePage,len);
   res:=temp;
 end;
 {$endif FPC_STRTOSHORTSTRINGPROC}
 
-Function fpc_WideCharArray_To_AnsiStr(const arr: array of widechar; zerobased: boolean = true): AnsiString; compilerproc;
+Function fpc_WideCharArray_To_AnsiStr(const arr: array of widechar; cp : TSystemCodePage; zerobased: boolean = true): AnsiString; compilerproc;
 var
   i  : SizeInt;
 begin
@@ -1017,7 +1017,7 @@ begin
   else
     i := high(arr)+1;
   SetLength(fpc_WideCharArray_To_AnsiStr,i);
-  widestringmanager.Wide2AnsiMoveProc (pwidechar(@arr),fpc_WideCharArray_To_AnsiStr,i);
+  widestringmanager.Wide2AnsiMoveProc (pwidechar(@arr),fpc_WideCharArray_To_AnsiStr,cp,i);
 end;
 
 Function fpc_WideCharArray_To_WideStr(const arr: array of widechar; zerobased: boolean = true): WideString; compilerproc;
@@ -1134,7 +1134,7 @@ begin
   len := length(src);
   { make sure we don't dereference src if it can be nil (JM) }
   if len > 0 then
-    widestringmanager.unicode2ansimoveproc(punicodechar(@src[1]),temp,len);
+    widestringmanager.unicode2ansimoveproc(punicodechar(@src[1]),temp,DefaultSystemCodePage,len);
   len := length(temp);
   if len > length(res) then
     len := length(res);
@@ -1437,7 +1437,7 @@ function StringToWideChar(const Src : AnsiString;Dest : PWideChar;DestSize : Siz
   end;
 
 
-function UnicodeCharLenToString(S : PUnicodeChar;Len : SizeInt) : AnsiString;
+function UnicodeCharLenToString(S : PUnicodeChar;Len : SizeInt) : UnicodeString;
   begin
      //SetLength(result,Len);
      widestringmanager.Unicode2AnsiMoveproc(S,result,Len);
@@ -1456,7 +1456,7 @@ procedure UnicodeCharToStrVar(S : PUnicodeChar;out Dest : AnsiString);
   end;
 
 
-function WideCharLenToString(S : PWideChar;Len : SizeInt) : AnsiString;
+function WideCharLenToString(S : PWideChar;Len : SizeInt) : UnicodeString;
   begin
      //SetLength(result,Len);
      widestringmanager.Wide2AnsiMoveproc(S,result,Len);
@@ -2527,7 +2527,7 @@ procedure unimplementedunicodestring;
     HandleErrorFrame(233,get_frame);
   end;
 
-  
+
 function StringElementSize(const S: UnicodeString): Word; overload;
   begin
     if assigned(S) then
@@ -2535,8 +2535,8 @@ function StringElementSize(const S: UnicodeString): Word; overload;
     else
       Result:=SizeOf(UnicodeChar);
   end;
-  
-  
+
+
 function StringRefCount(const S: UnicodeString): SizeInt; overload;
   begin
     if assigned(S) then
@@ -2545,7 +2545,7 @@ function StringRefCount(const S: UnicodeString): SizeInt; overload;
       Result:=SizeOf(UnicodeChar);
   end;
 
-  
+
 function StringCodePage(const S: UnicodeString): TSystemCodePage; overload;
   begin
     if assigned(S) then
@@ -2554,7 +2554,7 @@ function StringCodePage(const S: UnicodeString): TSystemCodePage; overload;
       Result:=SizeOf(UnicodeChar);
   end;
 
-  
+
 {$warnings off}
 function GenericUnicodeCase(const s : UnicodeString) : UnicodeString;
   begin
diff --git a/rtl/inc/wstrings.inc b/rtl/inc/wstrings.inc
index 52b90ed24c..553da593e4 100644
--- a/rtl/inc/wstrings.inc
+++ b/rtl/inc/wstrings.inc
@@ -50,7 +50,7 @@ Const
   These routines can be overwritten for the Current Locale
 }
 
-procedure DefaultWide2AnsiMove(source:pwidechar;var dest:ansistring;len:SizeInt);
+procedure DefaultWide2AnsiMove(source:pwidechar;var dest:ansistring;cp : TSystemCodePage;len:SizeInt);
 var
   i : SizeInt;
   destp: PChar;
@@ -236,7 +236,7 @@ begin
     begin
       If Size>high(res) then
         Size:=high(res);
-      widestringmanager.Wide2AnsiMoveProc(PWideChar(S2),temp,Size);
+      widestringmanager.Wide2AnsiMoveProc(PWideChar(S2),temp,DefaultSystemCodePage,Size);
       res:=temp;
     end;
 end;
@@ -261,7 +261,7 @@ begin
 end;
 
 
-Function fpc_WideStr_To_AnsiStr (const S2 : WideString): AnsiString; compilerproc;
+Function fpc_WideStr_To_AnsiStr (const S2 : WideString;cp : TSystemCodePage): AnsiString; compilerproc;
 {
   Converts a WideString to an AnsiString
 }
@@ -271,7 +271,7 @@ begin
   result:='';
   Size:=Length(S2);
   if Size>0 then
-    widestringmanager.Wide2AnsiMoveProc(PWideChar(Pointer(S2)),result,Size);
+    widestringmanager.Wide2AnsiMoveProc(PWideChar(Pointer(S2)),result,cp,Size);
 end;
 
 
@@ -498,12 +498,12 @@ begin
 end;
 
 
-Function fpc_WChar_To_AnsiStr(const c : WideChar): AnsiString; compilerproc;
+Function fpc_WChar_To_AnsiStr(const c : WideChar;cp : TSystemCodePage): AnsiString; compilerproc;
 {
   Converts a WideChar to a AnsiString;
 }
 begin
-  widestringmanager.Wide2AnsiMoveProc(@c, fpc_WChar_To_AnsiStr, 1);
+  widestringmanager.Wide2AnsiMoveProc(@c, fpc_WChar_To_AnsiStr, cp, 1);
 end;
 
 
@@ -651,7 +651,7 @@ begin
   len := length(src);
   { make sure we don't dereference src if it can be nil (JM) }
   if len > 0 then
-    widestringmanager.wide2ansimoveproc(pwidechar(@src[1]),temp,len);
+    widestringmanager.wide2ansimoveproc(pwidechar(@src[1]),temp,DefaultSystemCodePage,len);
   len := length(temp);
   if len > length(res) then
     len := length(res);
diff --git a/rtl/win/syswin.inc b/rtl/win/syswin.inc
index 0e82ee0380..a46ebaa972 100644
--- a/rtl/win/syswin.inc
+++ b/rtl/win/syswin.inc
@@ -302,28 +302,28 @@ function GetProcessID: SizeUInt;
  function CharLowerBuff(lpsz:LPWSTR; cchLength:DWORD):DWORD;
      stdcall; external 'user32' name 'CharLowerBuffW';
 
-procedure Win32Unicode2AnsiMove(source:punicodechar;var dest:ansistring;len:SizeInt);
+procedure Win32Unicode2AnsiMove(source:punicodechar;var dest:ansistring;cp : TSystemCodePage;len:SizeInt);
   var
     destlen: SizeInt;
   begin
     // retrieve length including trailing #0
     // not anymore, because this must also be usable for single characters
-    destlen:=WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, source, len, nil, 0, nil, nil);
+    destlen:=WideCharToMultiByte(cp, WC_NO_BEST_FIT_CHARS, source, len, nil, 0, nil, nil);
     // this will null-terminate
     setlength(dest, destlen);
-    WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, source, len, @dest[1], destlen, nil, nil);
+    WideCharToMultiByte(cp, WC_NO_BEST_FIT_CHARS, source, len, @dest[1], destlen, nil, nil);
   end;
 
-procedure Win32Ansi2UnicodeMove(source:pchar;var dest:UnicodeString;len:SizeInt);
+procedure Win32Ansi2UnicodeMove(source:pchar;cp : TSystemCodePage;var dest:UnicodeString;len:SizeInt);
   var
     destlen: SizeInt;
   begin
     // retrieve length including trailing #0
     // not anymore, because this must also be usable for single characters
-    destlen:=MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, source, len, nil, 0);
+    destlen:=MultiByteToWideChar(MB_PRECOMPOSED, source, len, nil, 0);
     // this will null-terminate
     setlength(dest, destlen);
-    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, source, len, @dest[1], destlen);
+    MultiByteToWideChar(cp, MB_PRECOMPOSED, source, len, @dest[1], destlen);
   end;
 
 
@@ -348,16 +348,29 @@ function Win32UnicodeLower(const s : UnicodeString) : UnicodeString;
                               Widestring
  ******************************************************************************}
 
-procedure Win32Ansi2WideMove(source:pchar;var dest:widestring;len:SizeInt);
+procedure Win32Wide2AnsiMove(source:pwidechar;var dest:ansistring;cp : TSystemCodePage;len:SizeInt);
   var
     destlen: SizeInt;
   begin
     // retrieve length including trailing #0
     // not anymore, because this must also be usable for single characters
-    destlen:=MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, source, len, nil, 0);
+    destlen:=WideCharToMultiByte(cp, WC_NO_BEST_FIT_CHARS, source, len, nil, 0, nil, nil);
     // this will null-terminate
     setlength(dest, destlen);
-    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, source, len, @dest[1], destlen);
+    WideCharToMultiByte(cp, WC_NO_BEST_FIT_CHARS, source, len, @dest[1], destlen, nil, nil);
+  end;
+
+
+procedure Win32Ansi2WideMove(source:pchar;cp : TSystemCodePage;var dest:widestring;len:SizeInt);
+  var
+    destlen: SizeInt;
+  begin
+    // retrieve length including trailing #0
+    // not anymore, because this must also be usable for single characters
+    destlen:=MultiByteToWideChar(cp, MB_PRECOMPOSED, source, len, nil, 0);
+    // this will null-terminate
+    setlength(dest, destlen);
+    MultiByteToWideChar(cp, MB_PRECOMPOSED, source, len, @dest[1], destlen);
   end;
 
 
diff --git a/rtl/win32/system.pp b/rtl/win32/system.pp
index 512417681f..58d46fc2c1 100644
--- a/rtl/win32/system.pp
+++ b/rtl/win32/system.pp
@@ -829,7 +829,6 @@ end;
 
 {$endif Set_i386_Exception_handler}
 
-
 {******************************************************************************}
 { include code common with win64 }