Dynamic Image issue using the SDK CrystalReportViewer in a Web Farm

Hello,
Well it's the classic dyanamic Red X image problem with a twist. We have the CrystalReportViewer control coded into an ASPX web page using the BOE XI R2 SDK.
The problem is everything works fine (after all the usual Red X image fixes) when only one of the servers in the farm are running. It's when two are running, by using Process Monitor, I can tell NetScaler is splitting up the HTTP calls so one server may have the temp image created and of course the other one doesn't.
Therefore, if you're lucky enough for one server to handle most of the load, image comes up fine. Otherwise, the report renders, but you get Red X for the image.
I have seen an article about a registry key (CrystalImageDir) that allows you to enter a network share as the temp folder. The problem is, we are using Windows Integrated Authentication for the intranet site so you're faced the two hop authentication hurtle, leading to access denied on the UNC network path.
Anyone using the SDK in a .NET application using multiple web front end servers?
Thanks!
Horus

By the way, I'm hearing that NetScaler can handle sticky sessions. However, since a report with dynamic images is really a GET request for the report, then a bunch of sub-GETs to grab the images, what URL would you set the sticky session for?
For example, if the web page containing the CrystalReportsViewer was:
https://coolapplication.mycompany.com/Site100/ReportApp/ViewReport.aspx
Then report the viewer would contain links to something like:
https://coolapplication.mycompany.com/Site100/ReportApp/CrystalImageHandler.aspx?dynamicimage=cr_tmp_image_5671d67a-4f5d-4ab1-b3c8-0d2561ee64f3.png
So which URL/page gets load balanced? Or is that not how LB works?
Thanks!
Horus

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I am not the programmer, he is out of the office today.
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Message was edited by: MichaelEastick

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<b></b>

Hi,
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Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

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Hello.
I'am actually using dynamic images depending of a filename and directory. This is working fine.
My problem is that my dummy image have a form (is in horizontal) and the dinamic images that i want to import to my template have multiple forms, i have images in vertical and images in horizontal and when i import an image that is in vertical , the image stays adjusted to my dummy image.
In this specific case , the customer have more than 20 companies with different logos ,of different forms, and when i import the logo to my template i want that the logo maintains his original form and not the form of the dummy image.
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Edited by: user4256563 on 5/Mai/2011 10:24

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Dynamic Image issue using the SDK CrystalReportViewer in a Web Farm

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