Yeah, you can, but this depends largely on your network setup.
Usually, when you have a (broadband) account with an ISP you get a dynamic IP. With some providers, although this IP is dynamic, it's still static in the sense that you get the same IP address every time.
If you have an IP address that doesn't change (often) and your machine is directly accessible on that IP address, you're good to go.
However, there are loads of reasons why this wouldn't work: a software or hardware firewall blocking access to traffic on port 80; an internal router that gives you a local network IP address and not a public IP address and so on.
So, all in all, the best way is to just try it. Open a command prompt and type ipconfig /all You should see your IP address. If it looks public (e.g. doesn't start with 10. or 192 or something like that) it may be work. Then simply type
http://[YourIp] in your browser.
Otherwise, consult your network guy / network documentation or your ISP for more details.
HtH,
Imar
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Imar Spaanjaars
Everyone is unique, except for me.