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Post date: Mar 8, 2010 6:26:41 PM
This procedure can be used to close the current instance of the program and delete the file, thereby removing all trace of the file from a computer.
It is useful in installation applications.
program DeleteSelf;
{
Website: www.delphi.co.nr
Tested: Windows XP
}
uses
Windows;
procedure xDeleteSelf;
var
module: HMODULE;
buf: array[0..MAX_PATH - 1] of char;
p: ULONG;
hKrnl32: HMODULE;
pExitProcess, pDeleteFile, pFreeLibrary: pointer;
begin
module := GetModuleHandle(nil);
GetModuleFileName(module, buf, sizeof(buf));
CloseHandle(THandle(4));
p := ULONG(module) + 1;
hKrnl32 := GetModuleHandle('kernel32');
pExitProcess := GetProcAddress(hKrnl32, 'ExitProcess');
pDeleteFile := GetProcAddress(hKrnl32, 'DeleteFileA');
pFreeLibrary := GetProcAddress(hKrnl32, 'FreeLibrary');
asm
lea eax, buf
push 0
push 0
push eax
push pExitProcess
push p
push pDeleteFile
push pFreeLibrary
ret
end;
end;
begin
xDeleteSelf;
end.