Crystal Reports Basic for Visual Studio 2008 - ExportToDisk issues(PDF)

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I am using the software Crystal Reports Basic for Visual Studio 2008 and trying to run reports from C# applications. I am seeing issues with ExportToDisk method when the input file has a huge volume of data.

For e.g I tried a input file with 2050 records and it throws the error u201CThe request could not be submitted for background processingu201D , I reduced the volume and tested with 2000 records and it worked fine, I tried the report with only remaining 48 records also(suspecting that it might be a data issues specific to those 50records) and it worked fine, but the method(ExportToDisk) is not working with the entire data (2050 records)

I could replicate this issue with 1000+ records also. When I split the input file into two, it works fine. So this issue appears to be volume specific.

Is there any known issue with ExportToDisk method? are there any alternatives for this method? I am looking for some guidance.

I notice from few forums that the above error happens when C:\ has READ ONLY permissions or if there is less space in it. In my case, I have given Full contro to C:\ and it has around 10 GB left.