What is the significance of having XInputExtensions disabled in Hummingbird Exceed?

When "XInputExtension" is enabled in Xconfig, Exceed will check the computer's COM ports to see what Xinput devices are attached in order to communicate with the device. However, if the COM port is occupied by a non-Xinput device (ie. a printer), the communication process goes into a dead loop and Exceed will hang.
There is nothing that can be done as Exceed needs to query the COM ports for an Xinput device. The only solution is to ensure that only Xinput devices are connected to the COM port or to disable XInputExtension.

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