I do not know which of these to allow or block or make me ask I have no
ideal what I am doing configuring the firewall do I block, allow theses or
make them ask me?

Internet Connection Sharing?
Windows RPC service?
DHCP protocol client?
DNS protocol client?
ICMP network diagnostics?
Destination Unreachable?
Ident Service?
Protocol AH?
Protocol ESP?
Protocol GRE?
L2TP VPN?
PPTP VPN?

Compression namespace for Array
.NET 3.0 and XP?
Downgrading .Net 2 application to .Net 1.1
CLR behavior about accessing data during garbage collection working
How to use Log4net TelnetAppender and Trace Listeners