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Why does my windows forms app access the internet?

Answer 1

+2 A:

I'd guess it isn't a big deal. References for your viewing pleasure:

Questions for you:

How do you know it's your windows app? ZoneAlarm.
Are you using multicast for anything? No.
Are you running any multicast apps or apps that might use uPNP? No.
Are you doing any networking with your app? If so, what classes are you using?

Try this the next time you see the alert:

Start> Run> cmd.exe:
netstat /b /o

That might give you more information on where the alert is coming from.

Michael Haren 2009-01-28 20:55:30

ZoneAlarm is showing the warning when I launch my app.

P a u l 2009-01-28 20:58:02

Some of the top results are other ZoneAlarm users with the same complaint. I wouldn't worry about it. It's not likely *your* app that's doing it, anyway. Zone Alarm tends to be overly aggressive with its alerts, IMO.

Michael Haren 2009-01-28 20:59:56

I updated my answer wth more info and more questions.

Michael Haren 2009-01-28 21:31:27

Instead o netstat, try tcpview. It's basically a netstat GUI, and it's much easier to deal with. http://technet.microsoft.com/en-us/sysinternals/bb897437.aspx

Herms 2009-01-28 21:49:49

Answer 2

+1 A:

^^Beaten to it

Do you have UPnP enabled on your computer? This is the main cause of Windows trying to access that IP address.

somacore 2009-01-28 20:56:19

"UPnP Device Host" service is disabled -- I've shut off a lot of services I don't want. I'm concerned that it's my program, and I can't control it since I don't know what's causing it.

P a u l 2009-01-28 21:03:30

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Why does my windows forms app access the internet?

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