Hi Stefan! Since you're at least the second person who has asked me about icon creation, I've now added step-by-step instructions to the [Create Icons](https://gitlab.winehq.org/wine/wine/-/wikis/Create-Icons) wiki page based on the notes I shared in these two emails: * https://list.winehq.org/hyperkitty/list/wine-devel@list.winehq.org/message/D... * https://list.winehq.org/hyperkitty/list/wine-devel@list.winehq.org/thread/BT... I used [Resource Hacker](https://www.angusj.com/resourcehacker/) to get the icon group IDs. I just double-checked and 221 is indeed the "power off" icon in Windows XP, Windows 7, and Windows 10. And on all three, the "info balloon" icon is number 1001. The problem is that your program expects the info balloon icon to be the 222nd icon. Currently Wine's shell32.dll has 189 icons, and if you add just the info balloon icon it will be the 190th. To make it the 222nd, you'll also have to add the missing icons 248, 249, 250, 253, 255, 256, 257, 259, 265, 268, 270, 274, 275, 277, 278, 282, 283, 284, 290, 299, 300, 301, 303, 305, 306, 307, 308, 309, 310, 314, 315, 316, and 317 and correct IDI_SHELL_SHIELD which was incorrectly added as 78 but should be 16747. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/10950#note_140747