Skype suspicious download activity ...

I just caught an alert on my desktop about high disk activity by Skype,
looking at the details it shows a 472MB of disk write activity, no
notification of upgrade or any other messages.

Trying to see if I can find what was recently written.

This the first time I see a report about such high disk activity related to

Anybody seeing anything similar ?

Thanks & Regards

PS. Platform is Windoze Vista 64bits

Skype previously showed a warning message showing that the Skype API /
Third party applications would stop working as of December 2013.

I would bet there was a silent forceful update to the software...