Link | Sxsi X64 Windows 8

(the Side-by-Side component store) on your 64-bit Windows 8 install, do not delete files manually. Instead, use these built-in tools: Disk Cleanup Disk Cleanup , select your system drive, and click Clean up system files Windows Update Cleanup : Open Command Prompt as Administrator and run: Dism.exe /Online /Cleanup-Image /StartComponentCleanup

In Siemens automation ecosystems, (often part of SIMATIC S7-SCL or older WinCC components) acts as a System Extension Interface . Its responsibilities include:

Let's you use the keyboard arrow keys to navigate the step sequencer and select the desired steps using either "x" or numpad "0" to hit the selected steps.

Keys	Action
Arrows right and left	Navigates through the steps
Arrows up and down	Navigates through the tracks
x or 0 (Numpad)	Hits the selected step

Hint

You can use it in conjunction with the numpad numbers 1 to 4 in order to navigate through the patterns and copy and past them using Ctrl + c, Ctrl + v.