Supercookie

The SharedObject class is familiar to many Flash programmers as a way to create a kind of supercookie; a local shared object (LSO) can store ActionScript data on the client between sessions.

While doing an online security scan, I was told I can ^([sic]) a vulnerability because of the presence of a supercookie.

I use the SR Ware Iron Browser, always on Incognito, and set to remove all data when i close the pane. I also remove all records after each day. Can you tell me, does this remove the supercookies?