Windows server throws vmci.sys in by default.   Other scenarios install it by default too on various guests.    If I edit the guest vmx and set vmci0.present = "FALSE" before I install the OS it does not install vmci.sys up to 16.1.2.    Now 16.2 seems to have a mandatory install even when doing all of the above.    So for Windows guests can go into the registry and under 'services' for vmci change the startup from 0 (boot) to 4 disable.    As far as I can tell I have no need for it and would like to have it gone (side note: youtube flaming lips with miley cyrus LSD).   In Windows if I disable the VMCI service are there any side effects given the guest is not using this?