Right. Packets are parsed or constructed more or less as a doubly-linked list of packet subclasses. .next points to the higher level protocol and .prev points to the lower level protocol. When you pack() a packet, it traverses the linked list to pack the types it encapsulates as well. ...
First, the ones I find least necessary, the Pro Tools versions. A couple of them are also 32-bit, so doubly useless to me. If you don't use Pro Tools and have no plans to, you can delete everything any manufacturer puts in these: C:\Program Files (x86)\Common Fi...