No... you do not have to have the BA client installed on the
machine running Data Protection for Exchange.
The DP for Exchange installation will install the TSM API
which it needs to communicate with the TSM Server.

However, if you want to use the BA client scheduler, then
you will need to install the BA client package.

Thanks,

Del

===============================================

> Is there a requirement that the Baclient be installed on the exchange
client
> when installing the TDP for Exchange? We have been installing it only to
use
> the dsmcutil commands to update or exact passwords but we do not backup
or
> restore the client itself.