Crystal Report error "The request could not be submitted for background processing." (using .Net 2003 web application)

Question

I've just newly installed Win Server 2k8 x64 (which moved from Win Server 2k3). Also, I tried to deploy the existing ASP.NET & VB.NET 32 bit web application to the new IIS 7 (the program is working properly in the old OS platform). Now, there has a problem occur when user to print crystal report by pressing a button control.
What I already to do is to give full permission to the folder "C:\Windows\TEMP\" with "Everyone"
But I still got the errors as below:
Error in File C:\Windows\TEMP\temp_9fa59122-a677-4270-8828-9529c4c62363.rpt:
The request could not be submitted for background processing.
CrystalDecisions.CrystalReports.Engine.InternalException: Error in File
C:\Windows\TEMP\temp_9fa59122-a677-4270-8828-9529c4c62363.rpt:
The request could not be submitted for background processing.
line 1132:        rpt1.SetDataSource(Nothing)
line 1133:
line 1134:        rpt1.SetDataSource(ds.Tables(0))
line 1135:
line 1136:        Me.CrystalReportViewer1.ReportSource = rpt1
[InternalException: Error in File C:\Windows\TEMP\temp_9fa59122-a677-4270-8828-9529c4c62363.rpt:
The request could not be submitted for background processing.]
    . F(String   , EngineExceptionErrorID 
) +262
    . A(Int16   , Int32   ) +493
   CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSource(Object value) +1352
   CSF.CSFOrderStatus.btnrpt3_Click(Object sender, EventArgs e) in
c:\inetpub\wwwroot\CSF\WebModules\CSFOrderStatus.ascx.vb:1134
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +111
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +110
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String
eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
+13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean
includeStagesAfterAsyncPoint) +1565
I also tried as lot of solutions as possible. The problem still cannot be fixed.
Appreciate for your kindly help & assist. I will reply back if i try to test succeed.