Sygate Pro Firewall , need help

Hi , i run Win XP Pro and i just install Sygate Profesional 5.0 firewall and i hawe 3 unknown programes who try to acces to internet :

NT Kernel $ System
LSA Shell (export version)
NDIS user mode I/O driver

What are those programs and is ok to allow them to internet ?
Thx for info .

NT kernel... ok (you can let that pass)

LSA Shell export version: have it on ask...don't know exactly what that is... but it only poped up once for me... because i see it in the application list as 'ask'

and NDIS thing... don't know...