Do You Know Where I Can Download A Demo Version Of Something Similar to 'System Mechanics Professional'?

I have used this software extensively but I do not have a subscription to iolo.com and my software trial period is over. (it won't let me run a demo version of System Mechanics on my pc). Do you know of a comparable software that does basically the same tasks that System Mechanics ?Would you know if that product offers a demo version free down load?