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IDEs like Visual Studio or Delphi are 32-bit executables. You can use their compilers to generate 64-bit code, but the 64-bit VPE ActiveX, .NET and VCL components can not be used on forms during design-time, i.e. when developing an application. The 32-bit IDEs are not able to load 64-bit code. You will require additionally the 32-bit version of VPE, in order to use the components at design-time in a 32-bit IDE.