CAPE-OPEN

The component names in COCO are determined the first time a property package is loaded. After that the component stay the same if you change the definitions (but not the components, which are identified by CAS). You can change the component names in the Compounds tab, from Flowsheet settings. You co...

COFE does not run unintentionally - COFEstand is just a small wrapper around COFE; it runs COFE to do the work.

So the problem is that COFE does not exit.

Can you reproduce this without COFEstand? If you just run the document in COFE, and the close COFE, does COFE remain active in the task manager?

I cannot reproduce this. In both PowerShell and cmd the process returns normally: Screenshot 2025-07-17 091721.png When this happens, can you check whether COFE.exe is still running? If so, when you close that (task manager) I presume COFEstand returns? If this is the case, can you try again, now ma...

I am not clear on your problem statement.

Can you first of all, when this happens, check with the task manager, or tasklist, whether COFE.exe and COFEStand.exe are still running at this point?

Secondly, which handle are you referring to? Presumably the STDOUT handle?

The mole number derivatives represent the increase in enthalpy if you would add a component to the mixture, thereby increasing its overall amount. If you compare to molar enthalpy, you should take into account also the increase you would get from increasing the number of moles in the mixture. This m...

Temperature and pressure derivatives are perturbed by a relative distance that can be adjusted from the unit operation's configuration; the perturbation is in the direction of positive T and P. Mole fraction derivatives are unconstrained and perturbed with a perturbation relative to 1, so the relati...

This is strange. Can you perhaps remove the entire registry key: HKEY_CLASSES_ROOT\CLSID\{429DC999-9073-4549-8647-BA72D6BE7931} and then try regsvr32 on COCOCOUS again? Perhaps there is something inside that key that does not belong there. Also, you are not starting COFE itself with administration r...

If the anwer to that is no, it looks like the compressor did not get registered properly. In this case, please re-install, or open a command prompt to go to the COCO installation folder, and in the x64 folder, try regsvr32 COCOCOUS.dll For an all users installation, the command prompt must be starte...

Can you insert a compressor into a new document?

eNRTL requires reactive equilibria (at least in terms of true composition, the composition is a result of the equilibrium routine), so it is not really possible to do this until the upcoming reaction interface standard is published, and supported by COCO. And then still it requires a significant imp...