XPUI_ICON error

I don't know what happen with XPUI_ICON.
First time , when i replace XPUI-install.ico
(Controlib\graphic\icon\XPUI-install.ico), It run oke.

But when i replace new icon the installer changed in Language page and some default dialog(messagebox), but almost page (i had written with nsDialog) don't change, it's old icon still.

Pls see attachment.

I'm appreciate with any suggestion. Thank for reading my post

This may just be that Windows has cached your icon but I've only seen that occur with shortcuts.

Search Google for "clear icon cache".

Stu