>>Since the NT o/s is multi-threading I have a problem when issuing the
>>RUN command to invoke PkUnZip to unzip several files. The
>>routine I need to do calls PkUnZip several times in succession
>>and this causes the DOS screens to stay open.
>>
>>Anyone know of a solution to this problem. I have tried using
>>RUN /N to limited success. Your assistance will be greatly
>>appreciated.
>
>There was several mentions, a few weeks ago, concerning the use of an API call to execute a Dos program. That may help.

Or, if you or your client has a spare $300, you might try DynaZip.