Skype recently announced the retirement of it’s Desktop API by December 2013. CallGraph Skype Recorder is built on the Skype Desktop API and depends upon it to function. Without the Skype Desktop API CallGraph Skype Recorder will cease to function. It is very unfortunate, but we will be forced to retire CallGraph Skype API along with the Skype Desktop API. There are no workarounds possible.
CallGraph Skype Recorder was released in March 2008 and as a free tool to record Skype conversation. It was, and still is, the only free Skype Recording Plugin without any limitations. It is especially popular in the podcasting community and a lot of podcasts are recorded still with CallGraph. For us, it was a great tool to provide our customers. At the end of the day, we are very happy that a lot of people used our tool and were happy with it. Thank you for using CallGraph.
As a fallback we would suggest using an app on your phone to record the call off your computer speakers. It leads to a loss of quality, but it works.
Update (7th November, 2013): The call recording API will not be retired at this time, as per Microsoft. CallGraph should therefore continue to work.