I've tried the free version of Syncios. It contains an OpenCandy offer, which is blocked by the hosts file rules.
Do you have those enabled? Unless you turned them off in the advanced settings, the rules should block the offer.

Сделано. Будет доступно в следующей версии.

Here is the song, Who Knows by Dima Kim:
http://rammichael.com/misc/files/Dima%20Kim%20-%20...

Dima Kim is a good friend of mine, and I'd like to thank him for letting me to use his song in the demonstration video of Unchecky, and for allowing to publish it freely.

Thanks for the report.
This will be fixed in the next version of Unchecky.

Hi,

Thanks for spreading the word.
We are constantly improving Unchecky.

As part of our improvements, we want to add support for Portuguese installers.
We are looking for a fluent Portuguese speaker with an understanding in the world of downloaders and installers.

Do you know of someone who can help us out?

Thanks in advance.

У меня появляется другое окошко, в котором "файловый советчик" невозможно отключить.

Closed due to a lack of feedback. Please leave a comment if you have more information.

Thanks. That's what I meant, but unfortunately those screenshots don't provide enough information about the failure.
Could you please send me a crash dump?
You can use the ProcDump utility:
http://technet.microsoft.com/en-us/sysinternals/dd996900.aspx

Launching procdump unchecky_svc should do the job.

Спасибо за информацию.
Получилось воспроизвести, будет исправлено в следующей версии.

Hi,
Could you please provide the exact error message, and/or a screenshot of the error?