I had to install the 32 bit 4.1 client on a Windows 2000 server but it won't activate.  I'm getting this message on the installation log:

avagent Error <6210>: Unable to register 'server' with MCS at avamar.server:21880

avagent Error <6164>: Registration error: Client ID(CID) missing from response.  (< msgver="1" />)

Can this work or it the client just too old even though it installs?