Solution
The support will depend on the version of Measurement Studio in which the older code was developed. Measurement Studio 2019 introduces .NET support for Visual Studio 2015, Visual Studio 2017, and Visual Studio 2019, including a complete set of .NET class libraries, example projects, and tools that integrate into Visual Studio 2015, Visual Studio 2017, and Visual Studio 2019. To use these libraries, you can either create new projects in Visual Studio 2015, Visual Studio 2017, or Visual Studio 2019 or use Visual Studio to upgrade your existing projects that use older Measurement Studio libraries. If you are using any version before 2015, probably there must be some changes done in the libraries.
If you came across certain function are not useable after upgrading to Measurement Studio 2019, the function could be deprecated and need to replace with another similar function.