Set Product Version and File Version to different numbers in C#

Question

In a C++ project, I can add different Product Version and File Version values to my assembly using VERSIONINFO in a Version resource file:

#define VER_PRODUCTVERSION          1,0,0,0
#define VER_PRODUCTVERSION_STR      "1.0\0"

#define VER_FILEVERSION             1,0,0,1
#define VER_FILEVERSION_STR         "1.0.0.1\0"

This appears in the DLL properties as:

I'm having trouble achieving the same in a C# project. I've set the following in the AssemblyInfo.cs file:

[assembly: AssemblyVersion("1.0")]
[assembly: AssemblyFileVersion("1.0.0.1")]

However, in the DLL properties, both are set to the value of File Version:

How can I set Product Version and File Version to different values in a C# DLL? I'm using Visual Studio 2019.

Answer 1

You can set the value displayed in the "Product Version" info using the AssemblyInformationalVersion attribute. Set this in your Assembly.cs file like this:

[assembly: AssemblyInformationalVersion("1.2.3.4")]

From the Microsoft documentation:

Note: If the AssemblyInformationalVersionAttribute attribute is not applied to an assembly, the version number specified by the AssemblyVersionAttribute attribute is used by the Application.ProductVersion, Application.UserAppDataPath, and Application.UserAppDataRegistry properties.