Can't add or remove modems

[Guest]

I originally reported the following problem with Windows Vista beta 2 build
5384 in June 2006: The Add button is disabled in the Modems tab of Phone and
Modem Options in the Control Panel. There is no internal modem on my test
system; I usually add an external modem and "Cable between two computers".

I have the same problem with build 5472 on the original test system. I
installed build 5472 on a new test system, and it has the same problem. The
only difference is that the built-in modem on the new test system was
configured automatically, but even so the Remove button is disabled. (On
Windows XP, Remove is normally enabled even for a built-in modem.) The
built-in modem is on COM3. COM1 is "working properly" (per the device
manager).

I need to be evaluate an application that uses dial-up networking on Windows
Vista. Does anyone know why the Add and Remove buttons would be disabled?

Graham

 

[Guest]

Here's a work-around I found...

Having noticed that running Add Hardware and Device Manager in the Control
Panel display a UAC "Windows needs your permission to continue" dialog before
you can use them, I tried a "Run as..." on Phone and Modem Options using
Shift+RightClick. This causes the UAC "Windows needs your permission to
continue" dialog to be displayed, and the Add and Remove buttons are enabled
in the Modems tab.

You would think Phone and Modem Options would display the UAC "Windows needs
your permission to continue" dialog automatically when it is run or when the
Modems tab is accessed.

Graham