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Resolved Is there any way to detect whether running as 32 bit or 64 bit?
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  1. Richard Hartman
  2. PowerBuilder
  3. Monday, 26 January 2026 11:46 PM UTC

Is there a way to determine if you are running as 64 bit or 32 bit?

The old version was compiled as 32 bit.  So registry values under HKEY_LOCAL_MACHINE were actually under

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Vyvx\Vbus\Version

Although when running as 32 bit, the key you use in code would be:

HKEY_LOCAL_MACHINE\SOFTWARE\Vyvx\Vbus\Version

and the OS would transparently add the "WOW6432Node" part.


So when running as a 64 bit compiled application, if I try to get the value from "HKEY_LOCAL_MACHINE\SOFTWARE\Vyvx\Vbus\Version" it's not found, because it's actually under the "WOW6432Node" emulation key.   So if I am running as 64 bit I need to explicitly ADD the "WOW6432Node" to the path myself, so it can find the same values that the 32 bit version of the application had set.

To do this, I would need to have a way to determine whether I am being compiled as 32 bit or 64 bit.

Is there a function to check this?

(... wow.  there is no tag to set for "registry")

GetResponseStatusCode returns -1 Activating different events on the same ribbonbar menu item ...
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Kim Berghall
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