I wanted to try it, since I want to change several classes on the form to a new class, but I'm getting an error

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hackform.exe - Unable To Locate Component
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This application has failed to start because MSVCR70.dll was not found. Re-installing the application may fix this problem.
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OK
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I got the executable from the website, should I try to get the one with the source code instead (older version)?

This is a question that would be answered much better by Rick Schummer. I am certain that his web site must have a "contact us" type of link.