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TwsActiveX class not registered run-time error '-2147221164 (80040154)

 

I get the Visual Basic error "?class not registered run-time error '-2147221164 (80040154)"? when opening?TwsActiveX? with Windows 10 and Microsoft 365.? ?I have re-installing Microsoft 365, but the error persists.? ?Any suggestions on what to try will be welcome.? ?

Thank you.??

Daniel
 

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If you build the ActiveX component (TWSLib.dll) yourself, then you have to run Visual Studio with Administrator privileges to be able to write the relevant registry entries.

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If you used IB's API installer to get the ActiveX component it should be properly registered: I suggest uninstalling and re-installing the API.

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From: [email protected] <[email protected]> On Behalf Of DANIEL.JOUBERT2@...
Sent: 16 December 2021 04:52
To: [email protected]
Subject: [TWS API] TwsActiveX class not registered run-time error '-2147221164 (80040154)

?

I get the Visual Basic error "?class not registered run-time error '-2147221164 (80040154)"? when opening?TwsActiveX? with Windows 10 and Microsoft 365.? ?I have re-installing Microsoft 365, but the error persists.? ?Any suggestions on what to try will be welcome.? ?

Thank you.??

Daniel

 

Hi Richard,

Thank you for the suggestion.? ?I used IB's API installer.? ?I have tried re-installing the API,? it did not work.? I re-installed Windows 365 and the API,? it still does not work.? The error persists.

Daniel
 

Hi Daniel:? Were you ever able to fix this?? I'm getting the same error.
Thanks,
Martin
 

Update/workaround:
  1. Uninstalled 64-bit version of Microsoft 365
  2. Restarted computer
  3. Installed 32-bit version of Microsoft 365
I realize that after v973.05 the API installer is supposed to work with 32-bit AND 64-bit Excel, but in my case it doesn't work with the latter and 32-bit is still required.

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