This article was previously published under Q257399
When you use the MSKey Keyboard Tool that is installed with the MicrosoftIntelliType Pro software, some keys may not appear to be depressed in theMSKey Keyboard Tool window.
This behavior can occur if you press multiple keys on the keyboard atthe same time.
To resolve this issue, quit and then restart the MSKey Keyboard Tool.
To prevent this issue from occurring, type in the usual fashion. Make surethat you do not press multiple keys on the keyboard at the same time.
The MSKey Keyboard Tool is a utility that is installed with the MicrosoftIntelliType Pro software version 1.0 or later. This utility allows you toconfirm that when you press a key on the keyboard, an identical keystroke is detected by the computer.
To start and run the MSKey Keyboard Tool:
Click Start, and then click Run.
In the Open box, type mskey, and then click OK.
Click the port to which the keyboard is attached.
NOTE: If your keyboard is designed to be attached to both the PS/2 and the Universal Serial Bus (USB) ports, click PS/2 or the MSKey Keyboard Tool cannot detect your keyboard.
Start typing to test your keyboard reaction.
Keyboards must discriminate between which keys are pressed. They do thisby "scanning" the keys, which are electrically arranged into a set of rows and columns. Depressing multiple keys at the same time creates the most demanding scenario for the keyboard to uniquely detect keys.