I have a problem while downloading the file mib.cab

Hi,
I have a problem while downloading the file mib. cab. The file looks damaged when I’m downloading it and I get this error when I try to extract the file. I’m also using the computer in my office which has proxy/antivirus and firewall.
Those are the only things that might cause this problem but I want to be sure.
Thank you.

Winzip
Some data in your zip file is damaged. The ocr is 5315af258 but should be c0b877fb.
OK
