@all
is "alt, right, enter, enter" to push this menu button?

maybe autoit suits to you.
I've downloaded Phoenix from
here and english language file from
there.
Title says this:

create .au3 with this sourcecode and compile it to .exe
ShellExecute(@ScriptDir & "\PhoenixEmuProject.exe")
WinWaitActive("Проект ÑмулÑции - «ФеникÑ» в.2.8.JAG", "QWidgetClassWindow")
WinWait("Проект ÑмулÑции - «ФеникÑ» в.2.8.JAG", "QWidgetClassWindow")
send("{LALT}")
send("{RIGHT}")
send("{ENTER}")
send("{ENTER}")
It starts PhoenixEmuProject.exe, waits that menu appear. sends Alt, Right, Enter, Enter for Power-Button