If you just want to record audio from the built in mic, then the Windows sound recorder will continue to record even if its not the active window.
If you want more control over your recording, or to do any editing of the audio file, then your options are vast given that you can run any windows app. Not sure what your needs are, but Audacity or REAPER might be a good place to start.
High Criteria Total Recorder people just sent me this:Hi,
i'm searching for an audio recording app for my Surface Pro which keeps recording when in the background.
Can anyone help?
joga
The headphone jack also supports mic input.