The 1.4.1 version of tkDelay is available as a free download on our website. The actual developer of the program is tritik. The program lies within Multimedia Tools, more precisely Music Production.
From the developer:
TkDelay is a delay audio plugin with hi/low/band pass filters. This application can be used with programs that support VST or AAX format. It has a simple interface which is fully resizable. The controls in its main interface allows you to change the overdrive, ducking, wet/dry and output gains, phase inversion, ping-pong, and reverse mode.
You may want to check out more software, such as Virtual Guitarist 2, Waves 360 Surround Tools Bundle or Voxengo LF-Max VST, which might be similar to tkDelay.