16-Bit MS-DOS-Based Communications Program May Not Work (138159)

RESOLUTION

To resolve this issue, add the following setting to the [386Enh] section of the System.ini file

   COM<n>AutoAssign=2
				

where <n> is the port your modem is assigned to. For example:

   COM2AutoAssign=2
				

If the "COM<n>AutoAssign=2" setting does not work, close all programs that are monitoring the communications port (such as Dial-Up Networking Server and Microsoft Fax), and then use one of the following methods:

• Disable caller access to Dial-Up Networking Server. To do so, follow these steps:
  
  
  1. Click the Start button, point to Programs, point to Accessories, and then click Dial-Up Networking.
  2. Click Connections, and then click Dial-Up Server.
  3. Click No Caller Access, and then click OK.
• Disable the automatic receiving of faxes. To do so, follow these steps:
  
  
  1. Use the right mouse button to click Inbox on the desktop, and then click Properties on the menu that appears.
  2. Click Microsoft Fax, and then click Properties.
  3. Click Modem, click the modem you are using, and then click Properties.
  4. Click Don't Answer, and then click OK until you return to the desktop.

For additional information about using the "COM<n>AutoAssign=" setting, please see the following article in the Microsoft Knowledge Base: Also, verify that the modem is using the correct IRQ and I/O address settings for the COM port it is using.