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How do I use Version Swapper?

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Hello, I have VIsilogic Version 9.8.31, I have downloaded Visilogic swapper version 9.4.0 and 9.3.1 (zip files, and extract them), but when i use Visilogic swapper to register version 9.4.0 or 9.3.1 an error message appears: "Runtime error 339 Component amiTapi.ocx or one of its dependencies not correctly registered: a file is missing or invalid". What can I do to solve this?

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  • MVP 2022

Hi Edgar,

Reading your post has me a little confused.....your statement implies you are trying to register various versions of Swapper.  Swapper is the means to register different Visilogic versions.  It is primarily used for when you want to work with older versions of Visilogic for compatibility with PLC installs done at some point in time past.  Using modern versions often creates the need to update a host of things, or do major mods to a program because of the constant improvements Unitronics is excellent at, and this is the way to get around it without uninstalling the existing version and reinstalling the one you want to use.   To get older versions of Visilogic you should be looking at "Previous Versions", not "Swapper Versions" on the software page: https://unitronicsplc.com/software-visilogic/

Use the latest version of Swapper that will have installed along with 9.8.31 to register various versions of Visilogic.  (edit:  9.8.31 was current at time of post, but always relates to the latest stable version)

Run both the installs and programs as Administrator.  I also suggest that you have a good read of these topics/answers: 

My method of creating "virgin" Visilogic installs and then copying them elsewhere for future use/reference hasn't failed me yet.  If you still have issues after trying the options, please let us know.



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