Where can I learn about Expect's commands?
ActiveState maintains online copies of documentation at [L1 ].
Is Expect thread-safe?
The answer, by Don Libes recently, was No. [L2 ]
Is there a newer version of Expect that works (and/or works better) for Windows?
There is an up-to-date port of Expect for Windows available from ActiveState commercially [L3 ]. Otherwise there is an old port that is based off a hacked version of Tcl 8.0 from Gordon Chaffee.
how to access the result of a remote command in Expect.
One frequently-asked question is how to send escape characters through Expect.