INBOX Drivers:
Basically shipped by VMware. Any issues pertaining to these drivers, will be having complete attention from VMware as, these are coded by VMware itself.
Registered/Licensed users of VMware can contact VMware support directly to get the issues fixed pertaining to these drivers.
ASYNC Drivers:
Basically third party vendor drivers. Any issues pertaining to these drivers, will be having complete attention from device manufacturers as these are coded by device manufacturer. Registered/Licensed users of VMware may need to contact the respective vendor to get the issues fixed pertaining to these drivers.
Please see the support policy driven by VMware for third party hardware manufacturers. http://www.vmware.com/support/policies/ThirdParty.html
Example:
Nexus 1000v. For VEM (Virtual Ethernet Module) we need to involve CISCO in addition to VMware support.
