You're asking the wrong question. It should be, "Which version of .NET is required?" I can't answer that. You should post the question on Rick's support forum.
>I got an email from my colleague stating the following:
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>We had a client that was trying to enable the CASS Address Verification in Sysmanager > Preferences > Miscellaneous. They found that every so often, it would become un-checked. Eventually discovered that there was one machine that would show a message ‘Net Bridge object can not be created. Address verification is being turned off now’ and the log would show an error loading wwDotNetBridge. We found that this will happen if .NET framework is not installed on the machine, and once it is all is fine. Researching wwDotNetBridge, it totally makes sense, as it enables communication between VFP and .NET components.>
>So, how was it possible and does wwDotNetBridge indeed require .NET framework to be installed?
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer