Export to Word format crashes IIS worker process

Question

I'm using CR for VS 2005 in a Web application. While on development machine, everything is acting normal. I export the report to Word format without any problem.
However, after deployment to test environment, CR starts to cause problems. When I try to export the report to any Word format, it crashes the IIS worker process. I tried installing several CR for .net packages, but I can't manage to solve this problem. The export to .pdf and .xls works fine, as well as the other main functionalities.
Can anyone give me a link to the latest package for .net 2.0 (or vs .net 2005), or any hotfix where this bug is resolved. The release versions of the cr for .net 2.0 are quite a mess, and as I'm aware, installing none of them solved my problem.
I'm running Vista x64 on my development machine, and Windows Server 2003 on the test environment.

Answer 1

Here is the stack trace of the error:
[NullReferenceException: Object reference not set to an instance of an object.]
   Admin_Modules_ReportGeneratorControl.BtnExport_Click(Object sender, EventArgs e) +212
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(
String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl,
String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint,
Boolean includeStagesAfterAsyncPoint) +1746
This is the code of the BtnExport_Click event handler:
Response.Buffer = false;
Response.ClearContent();
Response.ClearHeaders();
((ReportDocument)Session["REPORT"]).ExportToHttpResponse(
(ExportFormatType)Enum.ToObject(typeof(ExportFormatType), int.Parse(DdlExportTypes.SelectedValue)),
Response, true, "Report");
I can guarantee you that the Session object IS NOT NULL and that the value taken from the Ddl is correct.
Also, this error crashes the IIS worker process. Here is the error log on that one:
Faulting application w3wp.exe, version 6.0.3790.3959, faulting module msvcr80.dll,
version 8.0.50727.3053, fault address 0x00014ba1.
And again, this error only occurs on the test environment server that is running Windows Server 2003 and has installed redist package of Crystal Reports for .NET Framework 2.0.
On the other hand, the Web site acts normally on the development machine, which is running Windows Vista x64. Here, the needed components for CR were installed during the setup of VS 2005 Team System Edition.
I think that this info will give you some more info on this problem.
Thanks, Dejan