what is ApplicUnsaf.Win32.Tool.EvID4226@100222

Hi,
I wanted to patch my tcpip.sys using http://www.lvllord.de/download.php?url=en/EvID4226Patch223d-en.zip
I think it is completely safe, but you may know it better…
thanks

It is a potentially unsafe program according to Comodo. That patch has been several years now and I have never seen a report it would be malicious. In fact it is something I have been using with XP over the years. Just tell CIS to ignore it.