Chapter 1 Introduction to Measurement StudioMeasurement Studio User Manual 1-6 ni.comInstalling the Current Version of Measurement Studio over PreviousVersions of Measurement StudioNote You can have only one version of Measurement Studio installed on a system for eachversion of Visual Studio or the .NET Framework installed on the system. For example,you can have Measurement Studio 8.1.2 for Visual Studio 2005 installed on thesame system as Measurement Studio 8.5 for Visual Studio 2008, but you cannot haveMeasurement Studio 8.1.2 for Visual Studio 2005 installed on the same system asMeasurement Studio 8.5 for Visual Studio 2005.If you install a newer version of Measurement Studio on a machine that hasa prior version of Measurement Studio installed, the newer version installerreplaces the prior version functionality, including class libraries. However,the prior version assemblies remain in the global assembly cache (GAC);therefore, applications that reference the prior version continue to use theprior version .NET assemblies.Note This does not apply to NationalInstruments.Common.dll.NationalInstruments.Common.dll uses a publisher policy file to redirectapplications to always use the newest version of NationalInstruments.Common.dllinstalled on the system, for each version of the .NET Framework.NationalInstruments.Common.dll is backward-compatible.Measurement Studio Package Comparison ChartThe following table lists the features included in the Standard,Professional, and Enterprise packages of Measurement Studio. Refer toni.com/mstudio for more information about the functionality andfeatures included with each Measurement Studio package, including VisualC++ functionality.