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Why does Windows NT think there is a mouse on a serial connection to a host computer?

April 26, 2017Computer connection host mouse NT serial think Windows

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Why does Windows NT think there is a mouse on a serial connection to a host computer?

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When Windows NT starts, it polls the serial ports for a mouse. For some reason, if a host computer (more specifically, an Alpha Micro AMOS host) is connected to one of the serial ports, Windows NT will think there’s a mouse connected and render the port unusable. To get around this problem, edit the c:\boot.ini file and add /noserialmice switch to the operating system definitions. For example: multi(0)disk(0)rdisk(0)partition(1)\WINNT=”Windows NT Workstation Version 4.00″ multi(0)disk(0)rdisk(0)partition(1)\WINNT=”Windows NT Workstation Version 4.00 [VGA mode]” /basevideo /sos would become: multi(0)disk(0)rdisk(0)partition(1)\WINNT=”Windows NT Workstation Version 4.00″ /noserialmice multi(0)disk(0)rdisk(0)partition(1)\WINNT=”Windows NT Workstation Version 4.00 [VGA mode]” /basevideo /sos /noserialmice Windows 3.1 Issues Note: This information only applies to ZTERM for Windows 1.2 and not ZTERM 2000 – ZTERM 2000 only runs on true 32-bit Windows operating systems.