Crystal & VB.NET

[John Kastrinos]

Yes, I know this is more of a Crystal group question. I posted there about 2
weeks ago, but no one EVER replies over there. So, I thought I would take a
shot here. If anyone has heard of this, please let me know:

I have a VB.NET NT service that: creates a Crystal report object, loads
report, connects report to Informix database, and exports the report to PDF.
Service runs great for days, exporting hundreds of times without problem.
Then something causes the export to fail and not create the PDF file. The
Export does not throw an exception. The only indication that there is an
error is that the export file is not created. There is nothing in the
application/system log to indicate something else happened at that time. From
that point on, all exports fail until the service is restarted. When
restarted, the service restarts the ones that failed and they export fine.
Have coded around loss of network connectivity and loss of Informix database
so that is not the issue. It is as though the Crystal DLL gets a flag set or
something internally switched off and does not produce any output from that
point on but does not produce any error messages.

Crystal .NET MergeModules version: 9.2.3300.0

Any help would be great.