To get it, a little effort is necessary: Write a real Christmas card to the developer or, even better, donate some money to a charity organization.
More info, address and donation links can be found on WOK's website.
26 Nov 2013 WOK releases INSTABACK for Windows VST (Free)
28 Jul 2013 WOK Plug-ins: Comprehensive Price Drop
01 Mar 2013 WOK releases "Notenspeicher" MIDI step sequencer
30 Jan 2013 WOK updates Estrima to v1.1
24 Jan 2013 WOK updates CromFX Vintage Multi Effect to v1.1
06 Oct 2011 WOK releases SAMse - Synth VSTi for Windows