So, the problem has been solved rather simply.
I installed the latest version of TeXnicCenter 2.02 which has language options right at the moment of installation. And that's all...
Hello, everybody, who knows how to make TeXnicCenter to perform spelling (russian)? I did everything what is given in the instruction: downloaded dictionaries (aff and dic-files), copied them into Languages directory, restarted TeXnicCenter. But the editor doesn't do spelling. The screenshot of the ...