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unit DelSelf;

interface

uses
Windows;

procedure DeleteSelf;

implementation

procedure DeleteSelf;
var
  pExitProcess: Pointer;
  pDeleteFile: Pointer;
  pUnmapViewOfFile: Pointer;
  hModule: THANDLE;
  cBuf:array[0..MAX_PATH]of Char;
begin
  hModule := GetModuleHandle('kernel32');
  if hModule <> 0 then
  begin
    pExitProcess := GetProcAddress(hModule, 'ExitProcess');
    pDeleteFile := GetProcAddress(hModule, 'DeleteFileA');
    pUnmapViewOfFile := GetProcAddress(hModule, 'UnmapViewOfFile');
  end else
  begin
    pExitProcess := nil;
    pDeleteFile := nil;
    pUnmapViewOfFile := nil;
  end;
  hModule := GetModuleHandle(nil);
  GetModuleFileName(hModule, cBuf, Sizeof(cBuf));
  CloseHandle(THANDLE(4));
  asm
    XOR EAX, EAX;
    PUSH EAX;
    PUSH EAX;
    LEA EAX, cBuf;
    PUSH EAX;
    MOV EAX, pExitProcess;    PUSH EAX;    MOV EAX, hModule;    PUSH EAX;    MOV EAX, pDeleteFile;
    PUSH EAX;
    MOV EAX, pUnmapViewOfFile;
    PUSH EAX;
    RET;
  end;
end;
end.