...
> During a restore of a mail file, we get the following when applying the
> log files.

> A DOS command window opens with the following entry

> comp = 11, fnc = 48, probeid = 31, errcode = 5010, extsympt =

> We seem to get this same entry for every log file after the log entries
> have been applied, and the log manager deletes the file. The DOS window
is
> from the NLOGASIO task. We discovered the hard way that if we close this
> DOS command box, the task is terminated, and the Domino server hangs.
This
> has just started happening since we upgraded to Domino R6.02. I can't
find
> anything in either the Domino KB or the TSM KB regarding this issue.

Forget KBs... use Google.  That turned up:

http://www-10.lotus.com/ldd/nd6forum.nsf/0/d39910221a991f6185256dbb0073d2c8?OpenDocument

which indicates that the quoted entry is for developmental debugging.
But what the codes indicate is undescribed, so you'll likely have to
contact Lotus support as Eduardo suggested.

   Richard Sims  http://people.bu.edu/rbs