I want to create a hotspot from a standard computer and it's WIFI adapter. I only get INTERNET access through dial-up, so I want the computer with dial-up to create a hotspot through its WIFI adapter, so I can use the dial-up in other rooms. I don't need the computers to all be officially networked; maybe just one program could ACCEPT requests from the WIFI, and fetch data through the dial-up. How can I do this? Thanks. So you want to create a wireless network?
I hope you want to protect it.
Can you give us the make and model of your router?
And the OS of the computer who will install the router.

Jonas I have Win XP. The WIFI is just a standard USB WIFI adapter, so I want a solution that works with any WIFI adapter, but it is the Dell 1450 (USB, not internal). To all of the other computers that use this network, I want the network to appear a s a standard Internet hotspot, so I don't want a standard network. You can't do that with an adaptor.
An adaptor is something that receives Internet from a router it can't broadcast Internet.
In order to do that you'll need a router or an accesspoint.
Then the router will broadcast the Internet.

Jonas
Actually you can do it with some adapters but they need to support being used as an access point.
This one does for EXAMPLE:
Zyxel G-220
KristopherWindsor your adapter doesn't appear to support being used as an AP. So there is no way of doing what you want without either getting an adapter that can or a router like Jonas suggested.

But the good news is that you probably don't need any special software to share your internet connection. Many versions of Windows support internet connection sharing, so if or when you get the proper equipment we can GUIDE you through the setup.-> They need to support being used as an access point.

Isn't that more of a software problem? If the WIFI adapter can send and receive signals, why can't it work as an access point?It's actually more of a driver problem. Windows doesn't control a wireless adapter directly, the driver does that. So if the driver doesn't support this feature no amount of software can change that.