Download only MS Vulnerabilities

Hi,

I have faced a problem on my 8.7 SP5 installation.

I have selected to download only MS Vulnerabilities (english language) and I saw that definitions, other than Microsoft have been donwloaded.

The other definititions are like Yahoo, Adobe Acrobat, Firefox etc.

Is this normal? I want to check my workstations only for Microsoft Vulnerabilities and download the appropriate patches. In the current situation, more than 750 vulnerabilities found from which more than 100 are different than Microsoft.

Any ideas?

Thanks in advance,

Nikos