| Windows XP Service Pack 2 installs a new
version of ODBC drivers in MDAC 2.81. In this environment, it
appears that only one active data connection using ODBC driver for
dBase is allowed. Any attempt to use this ODBC driver in another
application will be blocked and an ODBC driver error will be
generated, "[Microsoft][ODBC dBase Driver] Unexpected error from
external database driver (15877)".
For example, when CitectSCADA design time applications are
running, ODBC driver for dBase is locked up by these applications.
Therefore, CiRecipe control on Graphics Builder will fail to
retrieve the data from a dBase file as the ODBC driver is being
used by CitectSCADA. In this case, just ignore the error prompt and
save the control configuration information and the page. When you
run your project it should open the .dbf file successfully and
populate the table provided all CitectSCADA design applications are
closed.
It is noted that similarly Citect Explorer will fail to start up
when an application using ODBC driver for dBase is running and
generate an error "A severe error has occurred. Process will
terminate". In this case, you must shut down the application before
starting up Citect Explorer.
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