Cookie format has changed
Posted on 2011-09-08
It used to be that IE cookies were stored in the users cookies folder (c:\users\username\cookies or c:\documents and settings\username\cookies) in the form: username@domainname e.g. firstname.lastname@example.org
Something has changed in the last few months so that the cookies are now stored in what appears to be a random letter and number format e.g. F6F3N6DQ.txt
There is no way of telling which cookie is which without opening each text file and inspecting the contents - and even then it's not obvious.
There now appears to be a new entry type in the temporary internet files cache folder e.g. cookie: email@example.com/
This is linked in some way to the relevant file in the cookies folder. For instance if you delete 'cookie: firstname.lastname@example.org' from temporary internet files folder it deletes F6F3N6DQ.txt in the cookies folder.
Therefore, the entire way IE stores cookies has been changed at some point - this has severely impacted several of our applications which rely on deleting cookies programatically (I am still having problems redesigning the apps to delete from the new locations - it appears you cannot now delete directly using the file system!)
Does anyone know when this change came about, the reasons behind it and whether it is possible to revert back to the previous system?