We're upgrading Datacap from 9.1.6 to 9.1.9, and after the upgrade, I'm encountering the following error message when loading any application in Datacap Studio. Is there a workaround to fix this?

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Blue Sphere
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9.1.6 iRRX.dll is somewhere on your system or your custom app is referencing this old dll.

You perhaps need to upgrade Datacap Development Kit to 9.1.9 and recompile.

https://github.com/ibm-ecm/datacap-developer-kit/blob/master/IBM-Datacap-DDK-9.1.9.zip

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dsakai
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This is a fresh Datacap 9.1.9 installation on the server, not an in-place upgrade. The vallidations.dll came with the Datacap installation itself, so I don't believe I can recompile the dll.

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Blue Sphere
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Original Message:
Sent: Mon March 31, 2025 12:52 AM
From: dsakai
Subject: Could Not load file iRRX

9.1.6 iRRX.dll is somewhere on your system or your custom app is referencing this old dll.

You perhaps need to upgrade Datacap Development Kit to 9.1.9 and recompile.

https://github.com/ibm-ecm/datacap-developer-kit/blob/master/IBM-Datacap-DDK-9.1.9.zip

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dsakai
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Hi Blue Sphere,

My guess would be that c:\datacap is the path of your old datacap 9.1.6 installation and you have installed 9.1.9 in a different path? Otherwise i would expect the old dll to be overwritten (unless you didnt stop Taskmaster etc during install or something).

Solution

Remove all faulty actions from your rules and replace them with new versions of the same actions from the actions tab.

Technical Background

This error message is displayed, because the Rules refer to c:\datacap\RRS\Validations.dll for some of the selected Actions. This dll is apparently an old version of the Validations-library. The mechanism of how Datacap interfaces with its libraries has changed since then - now using the interface iRRX (instead of the class RRX), which can not be found in the old dll, hence the error message.

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Julian Fiegenbaum | ISR Information Products AG | Consultant | Germany
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Thank you, @Julian Fiegenbaum and @dsakai, for your response. This is a fresh installation of Datacap 9.1.9 on the server, not an in-place upgrade. It appears that our application also contained a validations.dll file, which was causing the issue. After removing this DLL from our application, Datacap Studio successfully loaded the validations.dll file from the RRS folder without any issues.

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Blue Sphere
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Original Message:
Sent: Mon March 31, 2025 03:49 AM
From: Julian Fiegenbaum
Subject: Could Not load file iRRX

Hi Blue Sphere,

My guess would be that c:\datacap is the path of your old datacap 9.1.6 installation and you have installed 9.1.9 in a different path? Otherwise i would expect the old dll to be overwritten (unless you didnt stop Taskmaster etc during install or something).

Solution

Remove all faulty actions from your rules and replace them with new versions of the same actions from the actions tab.

Technical Background

This error message is displayed, because the Rules refer to c:\datacap\RRS\Validations.dll for some of the selected Actions. This dll is apparently an old version of the Validations-library. The mechanism of how Datacap interfaces with its libraries has changed since then - now using the interface iRRX (instead of the class RRX), which can not be found in the old dll, hence the error message.

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Julian Fiegenbaum | ISR Information Products AG | Consultant | Germany
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