Updating PSP on Hyper-V boxes

[MSowersusa]

We run several Proliant servers running Hyper-V VMs on them. Does anyone know if there are any issues with updating the PSP on these existing servers? Do the driver updates mess up Hyper-V in any way? The reason I ask is using the old MS Virtual Server 2005 software you would totally mess up the VM, especially the NICs if you upgraded drivers. I know the two use totally different driver models, but just need to know if there are any issues or gotchas.