c++ - Delete a file on 'Cache Clear' in IE -

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we creating browser extension ie. using atl , c++ create same.

we writing file: authtest.txt on successful login inside 

%appdata%\local\microsoft\internet explore

to store information during session. on logout, deleting file well.

my question when user clears cache of ie browser, authtest.txt not deleted.
how delete file on cache clear code?

ie maintains database of files in cache. have tell ie file can added database. @ createurlcacheentry(), commiturlcacheentrya(), , commiturlcacheentryw(). refer msdn more details working ie cache:

caching (windows)


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