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funkey

Difference between CreateProcessA and CreateProcessW

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funkey

Hello,

can anybody tell me what is wrong with the uincode version of my C Run() function? Ansi Version works fine, but I have no clue why CreateProcess does not work in Unicode.

 

 

#include <windows.h>

int RunA(LPSTR szRun)
{
    PROCESS_INFORMATION     pi;
    STARTUPINFOA            si;

    ZeroMemory(&si, sizeof(si));
    si.cb = sizeof(si);
    ZeroMemory(&pi, sizeof(pi));

    char szDir[1024];
    GetCurrentDirectoryA(sizeof(szDir), szDir);

    if (!CreateProcessA(NULL, szRun, NULL, NULL, FALSE, 0, NULL, szDir, &si, &pi))
    {
        return 1;
    }

    CloseHandle(pi.hThread);
    return 0;
}

int RunW(LPWSTR szRun)
{
    PROCESS_INFORMATION     pi;
    STARTUPINFOW            si;

    ZeroMemory(&si, sizeof(si));
    si.cb = sizeof(si);
    ZeroMemory(&pi, sizeof(pi));

    wchar_t szDir[1024];
    GetCurrentDirectoryW(sizeof(szDir), szDir);

    if (!CreateProcessW(NULL, szRun, NULL, NULL, FALSE, 0, NULL, szDir, &si, &pi))
    {
        return 1;
    }

    CloseHandle(pi.hThread);
    return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    if (RunA("calc.exe"))
    {
        MessageBox(NULL, TEXT("Failure ANSI version"), TEXT("CreateProcess"), MB_ICONERROR);
        return 1;
    }
    /*
    // Why does the unicode function crash ??
    if (RunW(L"notepad.exe"))
    {
        MessageBox(NULL, TEXT("Failure UNICODE version"), TEXT("CreateProcess"), MB_ICONERROR);
        return 1;
        }
    */
    return 0;
}

Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

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funkey

I found the solution.

It works, if i call the function like this:

wchar_t command[MAX_PATH];
    wcscpy_s(command, L"notepad.exe");
    RunW(command);
I did not read all on MSDN

The Unicode version of this function, CreateProcessW, can modify the contents of this string. Therefore, this parameter cannot be a pointer to read-only memory (such as a const variable or a literal string). If this parameter is a constant string, the function may cause an access violation.

Sorry.


Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

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funkey

Thanks for testing!

Here is the working function:

 

#include <windows.h>

int Run(LPTSTR szRun)
{
    PROCESS_INFORMATION     pi;
    STARTUPINFO         si;

    ZeroMemory(&si, sizeof(si));
    si.cb = sizeof(si);
    ZeroMemory(&pi, sizeof(pi));

    TCHAR szDir[1024], szCmd[MAX_PATH + 1];
    GetCurrentDirectoryW(sizeof(szDir), szDir);
    wcscpy_s(szCmd, szRun);

    if (!CreateProcess(NULL, szCmd, NULL, NULL, FALSE, 0, NULL, szDir, &si, &pi))
    {
        return 0;
    }

    CloseHandle(pi.hThread);
    return 1;
}

int RunWait(LPTSTR szRun)
{
    PROCESS_INFORMATION     pi;
    STARTUPINFO         si;

    ZeroMemory(&si, sizeof(si));
    si.cb = sizeof(si);
    ZeroMemory(&pi, sizeof(pi));

    TCHAR szDir[1024], szCmd[MAX_PATH + 1];
    GetCurrentDirectoryW(sizeof(szDir), szDir);
    wcscpy_s(szCmd, szRun);

    if (!CreateProcess(NULL, szCmd, NULL, NULL, FALSE, 0, NULL, szDir, &si, &pi))
    {
        return 0;
    }

    WaitForSingleObject(pi.hProcess, INFINITE);
    CloseHandle(pi.hProcess);
    CloseHandle(pi.hThread);

    return 1;
}


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    if (!RunWait(TEXT("calc.exe")))
    {
        return 1;
    }
    if (!Run(TEXT("notepad.exe")))
    {
        return 1;
    }

    return 0;
}

Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

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funkey

I am not sure what you meanwith using lpApplicationName, but I am the user, so it's just a helping function for me. It's not only application Name if you mean this, you can also run it like this: 'Run(TEXT("cmd /k netstat -p tcp")'.


Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

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JohnOne

I'm just referring to the comments of the first parameter on msdn.

The lpApplicationName parameter can be NULL. In that case, the module name must be the first white space–delimited token in the lpCommandLine string. If you are using a long file name that contains a space, use quoted strings to indicate where the file name ends and the arguments begin; otherwise, the file name is ambiguous. For example, consider the string "c:program filessub dirprogram name". This string can be interpreted in a number of ways. The system tries to interpret the possibilities in the following order:

c:program.exe filessub dirprogram name

c:program filessub.exe dirprogram name

c:program filessub dirprogram.exe name

c:program filessub dirprogram name.exe

so if a program.exe ends up on your c drive that's what it will execute.


AutoIt Absolute Beginners    Require a serial    Pause Script    Video Tutorials by Morthawt   ipify 

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Case $aParameters[0] == "A" ; CUU Move cursor up the indicated # of rows. ; ConsoleWrite("Debug: " & Number($aParameters[1]) - ($aParameters[1] = 0) & @CRLF) $iVtab -= Number($aParameters[1]) - ($aParameters[1] = 0) $iCursorPosY = $iVtab Case $aParameters[0] == "B" ; CUD Move cursor down the indicated # of rows. $iVtab += Number($aParameters[1]) + ($aParameters[1] = 0) $iCursorPosY = $iVtab Case $aParameters[0] == "C" ; CUF Move cursor right the indicated # of columns. $iHtab += Number($aParameters[1]) + ($aParameters[1] = 0) $iCursorPosX = $iHtab Case $aParameters[0] == "D" ; CUB Move cursor left the indicated # of columns. $iHtab -= Number($aParameters[1]) - ($aParameters[1] = 0) $iCursorPosX = $iHtab Case $aParameters[0] == "E" ; CNL Move cursor down the indicated # of rows, to column 1. $iVtab += Number($aParameters[1]) + ($aParameters[1] = 0) $iCursorPosY = $iVtab $iHtab = 1 $iCursorPosX = $iHtab Case $aParameters[0] == "F" ; CPL Move cursor up the indicated # of rows, to column 1. $iVtab -= Number($aParameters[1]) - ($aParameters[1] = 0) $iCursorPosY = $iVtab $iHtab = 1 $iCursorPosX = $iHtab Case $aParameters[0] == "G" ; CHA Move cursor to indicated column in current row. $iHtab = Number($aParameters[1]) $iCursorPosX = $iHtab Case $aParameters[0] == "H" ; CUP Move cursor to the indicated row, column (origin at 1,1). ReDim $aParameters[3] ; mandatory 2 parameters $iVtab = Number($aParameters[1]) + ($aParameters[1] = 0) $iCursorPosY = $iVtab $iHtab = Number($aParameters[2]) + ($aParameters[2] = 0) $iCursorPosX = $iHtab Case $aParameters[0] == "J" ; ED Erase display (default: from cursor to end of display). ReDim $aParameters[2] ; mandatory 1 parameters Switch Number($aParameters[1]) Case 0 ; Pn=0: erases from active position to end of display. __Sub_Print(_StringReplay(" ", $iHwidth - $iHtab + 1), $iHtab, $iVtab, $iDefaultForeground, $iDefaultBackground) If $iVtab < $iVheight Then For $y = $iVtab + 1 To $iVheight __Sub_Print(_StringReplay(" ", $iHwidth), 1, $y, $iDefaultForeground, $iDefaultBackground) Next EndIf Case 1 ; Pn=1: erases from the beginning of display to active position. __Sub_Print(_StringReplay(" ", $iHtab), 1, $iVtab, $iDefaultForeground, $iDefaultBackground) If $iVtab > 1 Then For $y = 1 To $iVtab - 1 __Sub_Print(_StringReplay(" ", $iHwidth), 1, $y, $iDefaultForeground, $iDefaultBackground) Next EndIf Case 2 ; Pn=2: erases entire display and move cursor to the top-left. _TextMode_CLS() $iHtab = 1 $iVtab = 1 EndSwitch Case $aParameters[0] == "K" ; EL Erase line (default: from cursor to end of line). __Sub_Print(_StringReplay(" ", $iHwidth - $iHtab + 1), $iHtab, $iVtab, $iActiveFGColor, $iActiveBGColor) Case $aParameters[0] == "L" ; IL Insert the indicated # of blank lines. Case $aParameters[0] == "M" ; DL Delete the indicated # of lines. Case $aParameters[0] == "P" ; DCH Delete the indicated # of characters on current line. __Sub_Print(_StringReplay(" ", $aParameters[1]), $iHtab, $iVtab, $iActiveFGColor, $iActiveBGColor) Case $aParameters[0] == "X" ; ECH Erase the indicated # of characters on current line. __Sub_Print(_StringReplay(" ", $aParameters[1]), $iHtab, $iVtab, $iDefaultForeground, $iDefaultBackground) EndSelect ; ; is it a single Control character ? (http://jkorpela.fi/chars/c0.html) ElseIf StringLen($sANSI_Escape) = 1 And (AscW($sANSI_Escape) >= 0 And AscW($sANSI_Escape) <= 0x1F) Then ; and 1 = 2 ; ConsoleWrite("Debug: ctrl -> " & @TAB & "[" & Ascw($sANSI_Escape) & "]" & @TAB & "[" & Asc($sANSI_Escape) & "]" & @TAB & "<-----------------------------" & @CRLF) ; control character interpreter ; --------------------------------------------------------------------------------------- $aParameters[0] = $sANSI_Escape Select Case $aParameters[0] = Chr(7) ; Bell, rings the bell Beep(900, 150) Case $aParameters[0] = Chr(8) ; Backspace <-- $iHtab -= 1 $iCursorPosX = $iHtab Case $aParameters[0] = Chr(9) ; Horizontal tab ; (Historically tab stops were every 8th character) If $iHtab >= 0 Then $iHtab = $iHtab + (Mod($iHtab, $iTabStop) * -1) + $iTabStop Else $iHtab = $iHtab + (Mod(Abs($iHtab) - 1, $iTabStop) + 1) EndIf $iCursorPosX = $iHtab Case $aParameters[0] = Chr(10) ; Line Feed @LF (move cursor down by 1 line) $iVtab += 1 $iCursorPosY = $iVtab Case $aParameters[0] = Chr(11) ; Vertical tab (move cusros up by 1 line) $iVtab -= 1 $iCursorPosY = $iVtab Case $aParameters[0] = Chr(12) ; Form Feed ; Case $aParameters[0] = Chr(13) ; Carriage Return @CR (move cursor to the beginning of this line) $iHtab = 1 $iCursorPosX = $iHtab Case $aParameters[0] = Chr(24) ; backspace with deletion (Cancel) $iHtab -= 1 __Sub_Print(" ", $iHtab, $iVtab, $iActiveFGColor, $iActiveBGColor) $iCursorPosX = $iHtab Case $aParameters[0] = Chr(30) ; LF + a partial CR (Carriage Return stops below previous HTab) ; (custom private) $iVtab += 1 $iHtab = $iStartingHtab $iCursorPosX = $iHtab $iCursorPosY = $iVtab Case $aParameters[0] = Chr(31) ; move cursor to the right by 1 char --> ; ConsoleWrite(".") $iHtab += 1 $iCursorPosX = $iHtab EndSelect Else ; print the text ; ConsoleWrite("Debug: FG=" & $iActiveFGColor & @TAB & "BG=" & $iActiveBGColor & @CRLF) ; $aStringChunks[$iChunk] = StringReplace(StringStripCR(_StringToCodepage($aStringChunks[$iChunk], 437)), @LF, "") __Sub_Print(StringReplace($aStringChunks[$iChunk], ChrW(0), ""), $iHtab, $iVtab, $iForegroundColor, $iBackgroundColor) $iHtab = $iCursorPosX $iVtab = $iCursorPosY EndIf Next EndFunc ;==>_TextMode_Print ; keep only the string portion that will fall into the the screen (parts outside the screen will be discarded) Func __Sub_Print($sString = "", $iHtab = $iCursorPosX, $iVtab = $iCursorPosY, $iForegroundColor = $iActiveFGColor, $iBackgroundColor = $iActiveBGColor) Local $iStringFullLen = StringLen($sString) Local $iStringLen = $iStringFullLen If Not $iStringLen Then Return ; no string to print Local $iStringEnd = $iHtab + $iStringLen - 1 $iCursorPosX = $iHtab + $iStringLen $iCursorPosY = $iVtab If _ ; check if all the string falls outside the printable area $iHtab > $iHwidth Or _ ; over the right edge $iVtab > $iVheight Or _ ; below the bottom $iVtab < 1 Or _ ; over the top edges $iStringEnd < 1 _ ; over the left edge Then Return ; adjust string if only a part has to be Printed If $iHtab < 1 Then ; remove the part outside on the left $sString = StringRight($sString, $iStringEnd) $iStringLen = StringLen($sString) $iHtab = 1 EndIf If $iStringEnd > $iHwidth Then ; removes the exceeding part on the right $sString = StringTrimRight($sString, $iStringEnd - $iHwidth) $iStringLen = StringLen($sString) EndIf Local $iAnchor = __GetAbsPos($iHtab, $iVtab) - 1 Local $iActive = $iAnchor + $iStringLen Switch _TextMode_Mode() Case $Normal ; print normal text on both layers __PokeText(0, $sString, $iAnchor, $iActive, $iForegroundColor, $iBackgroundColor) Case $Inverse ; switch foreground and background colors and print on both layers __PokeText(0, $sString, $iAnchor, $iActive, $iBackgroundColor, $iForegroundColor) Case $Blink ; to be continued .... __PokeText(0, $sString, $iAnchor, $iActive, $iForegroundColor, $iBackgroundColor) Case $Flash ; to be continued .... __PokeText(0, $sString, $iAnchor, $iActive, $iForegroundColor, $iBackgroundColor) Case Else EndSwitch EndFunc ;==>__Sub_Print ; Place string on the "screen" buffer Func __PokeText($iLayer, $sString, $iAnchor, $iActive, $iForeColor, $iBackColor) ; select the part of the screen buffer to be replaced with the incoming $sString _GUICtrlRichEdit_SetSel($hScreen[$iLayer], $iAnchor, $iActive, True) ; set styles for the incoming text _GUICtrlRichEdit_SetFont($hScreen[$iLayer], $iFontSize, $sFontName, $iCharSet) _GUICtrlRichEdit_SetCharColor($hScreen[$iLayer], __PeekColor($iForeColor)) _GUICtrlRichEdit_SetCharBkColor($hScreen[$iLayer], __PeekColor($iBackColor)) ; set or unset bold, italic, underline according if the rispective variable is set to true or false _GUICtrlRichEdit_SetCharAttributes($hScreen[$iLayer], $aAttribute[$Bold] & 'bo' & $aAttribute[$Italic] & 'it' & $aAttribute[$Underline] & 'un') ; place the text on the screen _GUICtrlRichEdit_ReplaceText($hScreen[$iLayer], $sString, False) _GUICtrlRichEdit_Deselect($hScreen[$iLayer]) EndFunc ;==>__PokeText Func _PushCursor($sAction = "Push") Local Static $iCursorPushX = $iCursorPosX Local Static $iCursorPushY = $iCursorPosY If $sAction = "Push" Then $iCursorPushX = $iCursorPosX $iCursorPushY = $iCursorPosY EndIf Local $aXY[2] = [$iCursorPushX, $iCursorPushY] Return $aXY EndFunc ;==>_PushCursor Func _PullCursor() Local $aXY = _PushCursor("Pull") $iCursorPosX = $aXY[0] $iCursorPosY = $aXY[1] EndFunc ;==>_PullCursor ; if you pass a number 0-15 it returns a predefined color from the $aColor[] array. ; if the number is > 15 and <= 0xFFFFFF it returns the same number, while if the passed ; number is out of range it return 0 ($Black)and sets @error Func __PeekColor($iColor) $iColor = Number($iColor) If $iColor >= 0 And $iColor < UBound($aColor) Then Return $aColor[$iColor] ; predefined colors ElseIf $iColor >= UBound($aColor) And $iColor <= 0xFFFFFF Then Return $iColor ; value is <= 0xFFFFFF Else Return SetError(1, 0, 0) ; if out of range return Black and set error EndIf EndFunc ;==>__PeekColor ; clear the screen (fill screen buffer with spaces) ; (for 'crazy' effects you could also select another char instead of the space and custom colors) Func _TextMode_CLS($sFillChr = " ", $iForegroundColor = $iActiveFGColor, $iBackgroundColor = $iActiveBGColor) ; clear the screen ; fill screen with white spaces (screen buffer) _GUICtrlRichEdit_SetText($hScreen[0], _StringReplay(_StringReplay($sFillChr, $iHwidth) & @CRLF, $iVheight - 1) & _StringReplay($sFillChr, $iHwidth)) _GUICtrlRichEdit_SetSel($hScreen[0], 0, -1, True) ; select whole screen ; set parameters _GUICtrlRichEdit_SetFont($hScreen[0], $iFontSize, $sFontName, $iCharSet) ; Set Font _GUICtrlRichEdit_SetCharColor($hScreen[0], __PeekColor($iForegroundColor)) ; Set Foreground default color _GUICtrlRichEdit_SetCharBkColor($hScreen[0], __PeekColor($iBackgroundColor)) ; Set Background default color _GUICtrlRichEdit_SetSel($hScreen[0], 0, 0, False) ; set cursor to home $iCursorPosX = 1 $iCursorPosY = 1 EndFunc ;==>_TextMode_CLS Func _TextMode_SetDefaultColors($iForeColor = $iDefaultForeground, $iBackColor = $iDefaultBackground) If $iForeColor = Default Then $iForeColor = $iDefaultForeground If $iForeColor < $Black Or $iForeColor > $BrightWhite Or $iForeColor = "" Then $iForeColor = $iActiveFGColor If $iBackColor = Default Then $iBackColor = $iDefaultBackground If $iBackColor < $Black Or $iBackColor > $BrightWhite Or $iBackColor = "" Then $iBackColor = $iActiveBGColor $iActiveFGColor = $iForeColor $iActiveBGColor = $iBackColor Local $aDefaultColors = [$iActiveFGColor, $iActiveBGColor] Return $aDefaultColors EndFunc ;==>_TextMode_SetDefaultColors Func _TextMode_SetActiveForeColor($iForeColor = $iActiveFGColor) If $iForeColor = Default Then $iForeColor = $iDefaultForeground If $iForeColor < $Black Or $iForeColor > $BrightWhite Then $iForeColor = $iActiveFGColor $iActiveFGColor = $iForeColor Return $iActiveFGColor EndFunc ;==>_TextMode_SetActiveForeColor Func _TextMode_SetActiveBackColor($iBackColor = $iActiveBGColor) If $iBackColor = Default Then $iBackColor = $iDefaultBackground If $iBackColor < $Black Or $iBackColor > $BrightWhite Then $iBackColor = $iActiveBGColor $iActiveBGColor = $iBackColor Return $iActiveBGColor EndFunc ;==>_TextMode_SetActiveBackColor ; Get / Set active TextMode effect Func _TextMode_Mode($iMode = -1) Local Static $iTextMode If $iMode >= $Normal And $iMode <= $Flash Then $iTextMode = $iMode Return $iTextMode EndFunc ;==>_TextMode_Mode ; set Normal or Inverse or Blink or Flash Func _TextMode_SetMode($iMode = $Normal) If $iMode >= $Normal And $iMode <= $Flash Then Return _TextMode_Mode($iMode) Else Return _TextMode_Mode() EndIf EndFunc ;==>_TextMode_SetMode ; check if is within color ranges Func _IsRGB($iColor) Return $iColor >= 0x000000 And $iColor <= 0xFFFFFF EndFunc ;==>_IsRGB ; move the TextMode GUI to Func _TextMode_GUIMoveTo($iX = 5, $iY = 5, $_hGUI = $_hVintageGui) If IsHWnd($_hGUI) Then WinMove($_hGUI, "", $iX, $iY) EndFunc ;==>_TextMode_GUIMoveTo Func _EndANSI() _GUICtrlRichEdit_Destroy($hScreen[0]) Exit EndFunc ;==>_EndANSI ; returns one or more chars replicated n times ; Example: ConsoleWrite(_StringReplay('*', 5) & @CRLF) Func _StringReplay($sChars = "", $iRepeats = 0) $sChars = String($sChars) $iRepeats = Int(Abs(Number($iRepeats))) Return StringReplace(StringFormat('%' & $iRepeats & 's', ""), " ", $sChars) EndFunc ;==>_StringReplay  
    • nacerbaaziz
      By nacerbaaziz
      Hi dear
      With this script you can print Unicode text in the CMD screen
      the script is  easy to use
      just you  write the text that contains Unicode in the first input
      and the script automatically reflect the code in the second input
       you can copy the text to the clipboard
      or you can try printing the text in the CMD window
      I apologize to everyone for colors and shape if not appropriate
      I'm a blind man and I do not see
      Thank you for your understanding
      Greetings to all of youCmdUtM.au3
    • Chimp
      By Chimp
      regex and iso escape sequences
      Hi, I would like to extract all ISO escape squences embedded in a string and separate them from the rest of the string, still keeping the information about their position, so that, for exemple, a string like this one (or even more complex):
      (the string could start with normal text or iso sequences)
       
      '\u001B[4mUnicorn\u001B[0m' should be 'transformed' in an array like this
      $a[0] = '\u001B[4m' ; first iso escape sequence $a[1] = 'Unicorn' ; normal text $a[2] = '\u001B[4m' ; second iso escape sequence ... and so on (note: the above escape sequence has 'control codes' marked as "\u001B' for the asc "esc" char for exemple and a similar notation is also used for other control chars, but in the real string to be parsed those control chars  are embedded  as a single byte with a value from 01 to 31). at this link (http://artscene.textfiles.com/ansi/) there are many example of real ANSI text files .
      searching on the web I've found some possible solutions that make use of regexp to achieve similar purpose, and above some others, the regexp pattern posted in the following link by kfir (https://stackoverflow.com/questions/14693701/how-can-i-remove-the-ansi-escape-sequences-from-a-string-in-python) seems to be able to catch a wider range of ISO escape sequences (not only color sequences), but my lack of skills on regexp, prevents me from evaluating and testing such patterns
      I would be very grateful if some regexp guru could come to my rescue...
      thanks everybody  for reading...
    • rootx
      By rootx
      I need help with unicode char ü I get some text from online json but if try to read 4 example Zürich I heave  Zürich.
      How can I convert with autoit unicode to a clear character readable? thx
    • 4bst1n3nz
      By 4bst1n3nz
      Hello,
      i need to save files with ANSI-Encoding. Since 3.3.14.2 Auto-It it doesn't work in any direction.
      I tried the following:
      #include <FileConstants.au3> FileDelete(@ScriptDir&"\Test.txt") $o = FileOpen(@ScriptDir&"\Test.txt", BitOR($FO_BINARY,$FO_ANSI,$FO_OVERWRITE)) FileWrite($o, "Test") FileClose($o) Or
      #include <FileConstants.au3> FileDelete(@ScriptDir&"\Test.txt") $o = FileOpen(@ScriptDir&"\Test.txt", 514) FileWrite($o, "Test") FileClose($o) Both create UTF-8 encoded files.
      What am i doing wrong?
      Thank you!
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