Recovering some disk space from agent

["Rene Matteau" <matteau@vnet.ibm.com>]

Hi,

I have been following a few high volume newsgroups. They are using
over half of the total disk space that the agent is using on my
machine. For various reasons, I don't have time to follow them anymore
so I would like to reclaim the disk space. First I will un-subscribe;
this will remove the groups from the summary, but this will not remove
the data from the agent. Now how do I remove these groups from the
agent and recover the disk space? I have not found a way to do
this. Agent expiry may recover the space (anybody know for sure?) but
I really don't want to lose the local data for the other newsgroups
that I want to continue following. So that seems to leave the manual
method. Will the following work:

1) stop gnus
2) Remove the line for each unwanted group from
   News/agent/nntp/SERVER/agent.lib/active
3) Remove ALL the line for each unwanted group from
   News/agent/nntp/SERVER/agent.lib/history (Is this in fact needed?)
4) Remove the directory containing the postings

Thanks...