Communication with an E3 Server can be encrypted with AES-128 standard. This control is performed by using the Encryption Options item. Possible value for this item are the following:

•0 (zero): Encryption is turned off. This is the default value if the registry key does not exist and keeps the existing behavior up to version 5.5

•1 (one): Encryption is turned on. This value uses encryption when the client supports it but allows older clients to connect without encryption

•2 (two): Encryption is mandatory. This value prevents clients using versions 5.5 or earlier from connecting, because these clients do not support encryption

Any value different from 0 (zero), 1 (one), or 2 (two) in this option enables option 0 (zero), that is, turns encryption off.