Nice! How you managed to get that is mystery to me as well... Anyway I don't like pinning anything on taskbar unless I need the recent files popup for some application. Currently I have only NP++, Word, Excel, Notepad3 and Xchange Editor. But I have clickable shortcuts all around with
True Launch Bar (main one in Quick Launch classic position, bottom of window; and also standalone TLBs sets on left and right).
At one point I had
Winstep Nexus running all the time then I had a top toolbar too
Now I'm implementing one-click icons for everything in Calibre using the second toolbar on bottom BTW