Save And Find Your Lync Instant Messages. To see your saved IM conversations from the Window menu select Conversation History. To look at previous instant message conversations do the following.
Lync saves instant messaging conversations in the Conversation History folder in the Exchange account of each participant. In the Personal information manager section look for a check box labeled Save IM conversations in my email Conversation History folder. View saved instant message conversations.
Check only Instant messaging conversations.
It was working fine for me a week back. In the callback invoked after the previous step. To install the download save the file to a directory on your computer. If you use Outlook and Exchange Lync saves all incoming and outgoing conversations in your Outlook Conversation History folder by default so that you can review previous conversations.