OPEN ERROR(0)     Potential Fix.

  Clipper Version  1.29 dtd 04/15/91.

  Problem Statement

  a) User was getting the subject error message repeatably.

  Cause

  Unknown.

  Work Around  Per user report:

  The workaround is to insert a call to indexkey() on an already open dbf,
  just before the attempt to open the new dbf.

    ..
    xx = mastinv->(indexkey(0))  && mastinv.dbf is already open
    sele 0
    net_use("store_w",.F.,5)
    set index to store_w         && this was causing openerror(0)
    ..