Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

/usr/share/virtualbox/rdesktop-vrdp-keymaps/

//usr/share/virtualbox/rdesktop-vrdp-keymaps/modifiers

Shift_R 0x36 Shift_L 0x2a Alt_R 0xb8 Mode_switch 0xb8 ISO_Level3_Shift 0xb8 Alt_L 0x38 Control_R 0x9d Control_L 0x1d # Translate Meta, Super and Hyper to Windows keys. # This is hardcoded. See documentation for details. # Translate Menu to the Windows Application key. # This one does not work either. Menu 0xdd