Did you download from the first page of this thread?
Get from here:
https://bitcointalksearch.org/topic/xmr-monero-a-secure-private-untraceable-cryptocurrency-583449
I'm now using the Monero Client.Net and it still shows 0 Connection. Please Help
The different clients all run the standard bitmonerod.exe daemon in the background, if you go to the folder you saved MoneroClient.Net in you should have a Resources/Software folder in there with a bitmonerod.log file in. Unfortunately it does tend to log a lot of irrelevant errors but you might see what is causing a problem.
0 connections means it isnt talking to peers out on the Internet, most common cause is either Windows Firewall or third party security software - you need to make sure they are allowing bitmonerod.exe to connect to the Internet.
Also I find on my Win8.1 PC MoneroClient.Net is only really happy if I run it as Admin, but that's probably my fault