[users] /NCRC

[filotheonjn316]

I downloaded openoffice, but when i  try to install it I got this message: "The 
installer you are trying to use is corrupted or incomplete. This could be the 
result of a damaged disk, a failed download or a virus. You may want to contact 
the vendor for a replacement...
It may be possible to skip this check using the /NCRC command line switch (not 
recommended).
   What can I do? Could You help me out? 
Thanks a lot.
                  Fernando