What do you think about Linux systems?

I talked to the guys from 1C. And notice, I didn't say it wouldn't work ;)
Besides, "it works" and "it works with the manufacturer's guarantee" are different things. The first is at your own risk, the second is with a guarantee and with technical support, etc.

I agree, you didn't say that. But you said "it doesn't guarantee correct operation." And I provided a link below to a company that promises it (correct operation, that is). Specifically, with technical support, etc.

P.S. Well, since you've talked to the 1C developers, let me ask if they plan to port their product to Unix systems. I think this should be one of their priority tasks, because Russia seems to be moving towards open-source software.