> I got almost the exact same message the other day and it
> turned out that COMMAND.PUB.SYS was full.  I solved my problem by
> building a new file with twice the capacity, copying the contents
> of COMMAND.PUB.SYS into it, then renaming the old COMMAND.PUB.SYS
> and changing the new file to COMMAND.PUB.SYS.
...
>         :SHOWCATALOG
>         MISSING MSG. SET=2. MESSAGE=70.
>         GENMSG CALLER    STATUS:  %101000 DELTA-P:  %177777
>         GENMSG CALLER+1  STATUS:  %140037 DELTA-P:  %040000

Any time you see this type of message it is a bug in MPE and
an SR needs to be created to track the defect.  We view these
types of defects as serious since they prevent diagnosis of
problems.  I looked in catalog.pub.sys and it is *possible* that
this could have been error 10070, which is a UDC parser error:
   Encountered an unexpected UDC syntax token. (CIERR 10070)

But might not be...

If you build a larger file and the problem vanishes then we
have at least 2 bugs here.

Jeff Vance, CSY