LaTeX.org

Thank you very much, it seems to work OK now

Do you mean the source of the file I have sent you (Latex1.txt)? That is not downloaded, that is a template in texniccenter, or if it comes from miktex, i dont know.
http://www.miktex.org/Setup.aspx
http://texniccenter.org/21.html

Oh sorry, here it is.

Thanks, I hope this file is what you asked for

HI, I am a total beginner. I installed miktex and texnicenter, put in the address of latex.exe during the texniccenter configuration. When I tried to create a PDF file from a TEX file downloaded from somewhere, there were reported several errors and nothing happened. Even when I tried create PDF ...