Fileserve Premium Cookie.
How To Use :
1. Install the latest version of firefox
2. Go to this link -- https://addons.mozilla.org/en-US/firefox/addon/13793/
and install add and edit cookies and restart firefox
3. Open www.fileserve.com
4. Now on firefox click tools>cookie editor
5. Now in the top of cookie editor you will see a filter bar
6. Now in filter bar search fileserve
7. The cookie name is PHPSESSID
8. Now copy the Premium Cookie to the content bar. Click on save.
9. Copy/Paste the link that you want to download to firefox.