I received a popup form Windows Firewall: I checked the Windows Firewal settings: Inbound Rules: Name Akamai NetSession Interface Akamai NetSession Interface Akamai NetSession Interface Akamai NetSession Interface Group Profile Private Public Private Public Enabled Yes Yes Yes Yes Action Allow Allow Allow Allow Override No No No No Program <Path to program> Any <Path to program> Any Local Address Any Any Any Any Remote Address Any Any Any Any Protocol TCP TCP UDP UDP Local Port Any 49163 Any 5000 Remote Port Any Any Any Any Allowed Users Any Any Any Any Allowed Computers Any Any Any Any <path to program. ==> C:\Users\<userid>\AppData\Local\Akamai\netsession_win.exe It is not listed in Outbound Rules at all. The Windows Firewall popup doesn't say whether it has blocked inbound or outbound communications, the protocal being used or the port being used. How dow I find out the above so I can understand what the program was trying to do and why Windows Firewall blocked the communications? (Please note this is a question about Windows Firewall and not netsession_win.exe.) http://www.saberman.com