The SED client has the following functionality:
- Key management
- PGP Zip
- File encryption using keys or passwords
- Create self-extracting archive files for people who do not use SED
- PGP Shredder
- PGP Messaging
- Email encryption
- IM encryption
- File Share Encryption
- Automatic/seamless encryption of all files in a Windows file share
- PGP Disk
- Full disk encryption
- Partition encryption
Using SED without a license is a good way to get used to encryption without spending any money. Once you are comfortable with the product I would recommend contacting Symantec, buying some licenses and having a Symantec Encryption Management server stood up. Using Symantec Encryption Management server allows you to easily manage all of your user's keys and the functionality of the SED client on their workstations.
My blog on Symantec Connect called Symantec Encryption Desktop Howto - PGP Zip can be found here.