Yes, all good free things come to and end. And MBAM is universally recognized as the best antispyware app out there. The 14-day trial MBAM can fix your computer, and if it does that for free, how can you complain? If you take it to one of the big box chain computer stores; expect to pay $65-$95 or more to get your problem fixed. If you visit questionable websites or share your computer with friends or family members who do with or without your knowledge, it's still worth $24.95 to keep the program on your computer to be able to deal with occasional threats if they come in the front door. Of course, it's you computer so you can choose to follow our suggestions or go elsewhere or be stuck with the problem.
Sorry HouseCall took so long to do your scan; but, it does catch stuff that your current AV program may miss. Generally speaking, if it takes that long to scan your 250GB drive, you may have it really crammed with files; that happens over time. It can also be an indicator of a failing hard drive; I've had HouseCall run for 24 hours on small drives (250GB & 320GB). As far as the dinosaur comment, this program has been around for a decade and is still in use by a number of Forutne500 companies. It's also possible that your Crossword Puzzle app has a virus in it which is quite frequent with free games downloads.
Looks like you have some more troubleshooting to do.
BBJ