Hi Claude,
The dll is multi-use for instancing. Error handler contains comreturnerror and it does not report error. I am not using Report Form. I am using ?? to generate the file. The output file is then transferred to the calling asp which in turns zips the file and sends the same back to the calling client. This problem is encountered only when more users hit the same report at the same time. I am not using session class at present. Is it necessary ? Why does even comreturnerror does not report any error ?

Regards and Thanks.

Bhavesh