The term "unsatisfied customer" can't be applied to Sri Lankans. There is nothing called brand loyality in Sri Lanka. Definetly there is zero potential for brand loyality among Sri Lankan software users. Almost all software used here are cracked pirated copies. Those who use these type of sofware have no respect for it since they got it "free" (you would pay atmost Rs100, If you paid more than that for your pirated disks you are a freakin looser). You can't become an "unsatisfied customer" since you could simply shift to another competiting product which you can obtain "free" cracked and ready to use.
Say you bought a software (eg Adobe Creative Suite [some $900+]) and you find it doesn't stand up to your expections. Then you have the right to be an unsatisfied customer, because you paid for a software. You may not be able to raise the required amount of money ($900+) to buy a competiting software. You have no money and the product you bought is no good, You now have the right to be unsatisfied, demand your money back from where you bought that product.
Say you are satisfied of the product you bought, you marvel at how it increases your productivity, happy about it's userfriendliness. Now you are a satisfied customer, You have the right to promote, recommend the product you are using. Say there comes a new product which claims to have better fuctions than the one you are currently using, but unfortunately you don't have money to give it a test. The software you are using serves you well so you decide to use it further and forget the new product. That's genuine brand loyality.
Now let me take myself as a typical Sri Lankan, software user. I go to my favorite CD shop as "buy" a CD of Photoshop for Rs60. I use it and find it suits my tasks perfectly. Then a friend comes and tell me PaintShop(Corel) is better. I get curious and the eagerness to try out some thing new promptly takes me back to the Cd shop, and I shell another Rs60 for a CD of PaintShop. I don't have to spend over Rs 10 000 to quench my curiousity. Even if I find the new product I "bought" not good, I'll feel no remorse (after all I spend only Rs 60). I have no right to be an unsatisfied customer
But take an average American/European (hoping he is not a torrent guzzler

) He can't afford to spend 1000s of dollars/euros just for quenching is curiosity to test new software. Those type of people stick to a product they use and use it even new versions of the same thing is available. He is helpless but also satisfied with the product he use.
I hope you got the fact that we can't apply "customer satisfaction" to ourself atleast in case of software.
Comming to the topic of WinRar,7Zip etc. . .If there is a better product, you can simply shift to it. You don't need to spend a load of bucks to transfer to the new software. You can download it free, or try your local software dealer.

If I find something better than 7zip, I'll shift to it. WinRK seems to be good. (it's commercial but the crack is available). I don't have to pay anything to shift a better product.

Same in the case of browsers, after using Firefox for sometime, I shifted to Opera since it's better. If something even better comes, I don't think twice to jump the fence.(after all it costs me nothing).
It's really unbelievable how you became a "satisfied content and calmed [read brainwashed] customer" of WinRar. Did you pay for your copy of WinRar, or do you have any "association
" with Alexander or Eugene Roshal.