Windows Screenshot (obsolete)
You find Kwik4_installer_win.bat and click it to run

It opens the command prompt

uncompressing Kwik4 zip to ktmp folder
please press Y

moving to Adobe exntension folder.
Press yes to remove old version of Kwik4

DONE! Delete ktmp
please press Y

Restart Photoshop
Photoshop's "Menu > Windows > Extension > Kwik4"
any key to exit