<human>: Summarize the given text in a few sentences.

I'm looking for a program that's similar to "keylogger" that records all activity discretely. I've tried using keylogger already however I've experienced that it can't seem to record the voip telephone conversations (I only get one side of the conversation).

Full story behind this is my friend's girlfriend has been using his laptop to cheat on him when he's out doing regional trips for about 1 or 2 days. We installed it just in case some shit comes down (previous suspicions). Apparently now she's also planning to steal from the accounts. We want evidence to put that b*tch in her place.
<bot>: a girl's been cheating we wanna catch her, any other discrete computer activity recorders out there you can recommend? (apart from "keylogger")