/AF additional details go in the footer, not above the buttons; useful only with /A /AX additional details is expanded by default; useful only with /A /DB:n default button; OK, YES, NO, CANCEL, etc.; or 1 - 10 for custom buttons /DR:n default radio button, 0 - 10; useful only with /R /HH like /H, but link targets must begin with a recognized protocol /T:n timeout, in seconds
/DR: If the value is 0, then none of the defined radio buttons is set at startup.
/HH: Check the link target before launching it. Targets beginning with http://, https://, or mailto: are launched as usual. Targets beginning with www. (sans protocol) get an https:// prepended automatically. Anything else will be ignored.