You can programmatically start APM and connect to your broker using Powershell (or some other program)
where AccountName should be replaced by the name of the account you want to open, and the --start argument indicates that APM should connect to your broker.
Note that this was added in version 3.3.8
& 'C:\Program Files (x86)\Alera\Alera Portfolio Manager\Alera Portfolio Manager.exe' AccountName --start
Note that this was added in version 3.3.8