Thunderbird compose email in a batch script - continue to next command

Using the following line in a batch script to call thunderbird and compose an email:

thunderbird.exe -compose "to='email@domain.com',subject='Some Subject',preselectid='id1',body='Message Body',attachment='File.txt'"

The command开发者_如何学C performs perfectly fine, however the batch script will not continue until the application terminates. Is there a way to bypass this so that the script will continue on with the next command?

use start /b before the command, and the batch script will continue to execute after launching the process.