XLS Padlock can change the default icon of the application. You can have your own icon for your application by specifying the path to an icon file (it must be a true icon file, .ico extension).
XLS Padlock supports any icon image such as 32×32, 16 colors or 48×48, 256 colors: if you need to create or extract icons easily, then try GConvert: our companion tool lets you extract icons or convert images into icons.
https://www.gdgsoft.com/gconvert
The icon file should be available as an external file when the application is being compiled.
ℹ XLS Padlock will also use this icon for the standalone application's EXE file.