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How to track the last opened CONVAL calculations

Allgemeine Diskussion » How to track the last opened CONVAL calculations Posted: 2. Februar 2023 - 7:54

Hi team,

We are using conval licensed version and my engineering team wants to keep track record of last 5 files opened by a user.

So I am in a beginning of developing this feature. Can you guys help me how can I achieve this. I am developing a application in C# using .Net framework.


Nitin Sharma


Benedict Nowak

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Hello Nitin,

Posted: 02.02.2023 - 12:37

Hello Nitin,

Thank you very much for your request.


The requested information can be found in the Windows registry at[HKEY_CURRENT_USER\SOFTWARE\F.I.R.S.T. GmbH\CONVAL 11\History].
The name of the entry consists of the file extension of the calculation for the corresponding calculation module and a consecutive number.
For example "CCV0" stands for the first entry in the list of the last opened control valve calculations, "CCV1" for the second and so on.


Nitin Sharma

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Track last opened calculations

Posted: 02.02.2023 - 12:57

Hi Benedict,

Thanks for quick reply 


Nitin Sharma