File/Media Manager Library

I been googling for three days to find a decent file manager for CI. I have downloaded a few free/open source but not satisfied:

fileman : small foot print and easier but hard to integrate to CI due to security issues (getting CI Session status outside the CI is hard).

KCFinder: again hard to integrate into CI.

All others I tried fall along the same problems. Or there is a secure way to pass the CI instance to media managers outside application folder?

My requirements are:

Multiupload and other related file management tasks (copy etc)

No database requirement
No user/user group nor login