[Whistler]

find this in the ui.c file:

PHP Code:

        if (g_header->install_directory_auto_append)
        {
          const char *post_str = ps_tmpbuf;
          GetNSISStringTT(g_header->install_directory_auto_append);
          // display name gives just the folder name
          if (lstrcmpi(post_str, g_tmp))
          {
            lstrcat(addtrailingslash(dir), post_str);
          }
        } 


...and comment all this out