Online Armor's (freeware) inbound protection...

How good is Online Armor's inbound protection-how good is freeware's inbound protection compared to shareware's inbound protection.
We all know how good OA freeware is in leak-tests/HIPS-tests, but what about its inbound protection.
Does it protect from SYN flood, DOS, DDOS and all other attacks from the computer?
Does OA (both free and paid) use HIPS, IDS or SPI for inbound protection?
What are the major differences between OA free- and shareware when it coomes to inbound protection?
Thanks.

 

The main problem is that once yu allow a program to connect OAFree allows automatically all connections for that program.