Hi all, I have a Dell Latitude C810 laptop. It has a built-in winmodem (3COM). I just got a new USRobotics modem (model 5637) which is a USB dongle dial-up modem. This is a true hardware modem (has its own controller). I mostly got it for Linux because there is no support for the winmodem. But I also want to use it in Windows XP some. Unfortunately, the installation instructions that came with the modem tell me to uninstall all other modems. And I really need to keep my built-in modem for when I don't want to use a dongle. USRobotics website says that built-in modems should be disabled through Device Manager. But it sounds like too much hassle if I have to do this often. So, is it possible to have both modems installed (and enabled) under Windows XP? Only one modem will be used at any one time. And only one modem will be connected to the phone line. Thank you.

the recommendation to disable the onboard modem only refers to freeing up mainboard resources. I have worked with systems that had multiple external modems all working at the same time. Give it a try. Only issue I see is when you want to use a program it may get confused as to which its to use.

In the case of what wanderer stated, you can change the default dialup connection in Control Panel / Iernet Settings / Connections.