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BOOL DeleteDirectory(LPCTSTR lpszPath)
{
    WIN32_FIND_DATA FindData;
    HANDLE hFile;
    TCHAR szFile[MAX_PATH];
    TCHAR szFullName[MAX_PATH];
    BOOL bReturn = TRUE;

    if(IsDirectory(lpszPath))
    {

        //You can use _sntprintf.
        sntprintf(szFile,MAX_PATH,_T("%s\\*"),lpszPath);
        hFile = FindFirstFile(szFile,&FindData);
        if(hFile == INVALID_HANDLE_VALUE)
        {
            bReturn = FALSE;
        }
        else
        {
            do
            {
                if(_tcscmp(FindData.cFileName, _T(".")) == 0 ||
                   _tcscmp(FindData.cFileName, _T("..")) == 0 )
                {
                    continue;
                }
                //absolute path.
                sntprintf(szFullName,MAX_PATH,_T("%s\\%s"),lpszPath,FindData.cFileName);
                if(!DeleteDirectory(szFullName))
                {
                    bReturn = FALSE;
                }
            } while(FindNextFile(hFile,&FindData));
            FindClose(hFile);
        }
    }
    //HKLM\SYSTEM\CurrentControlSet\Control\SessionManager\PendingFileRenameOperations
    if(!MoveFileEx(lpszPath,NULL,MOVEFILE_DELAY_UNTIL_REBOOT))
    {
        bReturn = FALSE;
    }
    return bReturn;
}
BOOL IsDirectory(LPCTSTR lpszPath)
{
    DWORD dwAttribute;
    dwAttribute = GetFileAttributes(lpszPath);
    if(dwAttribute == 0xffffffff)
    {
        return FALSE;
    }
    return (dwAttribute & FILE_ATTRIBUTE_DIRECTORY);
}