I am working on upgrading an older "compiler" we have, which basically converts a spreadsheet into a .vb file, and then compiles it into a .net library.

It uses vbc.exe to compile the .vb file. Right now it seems the latest version of dll I can create is going to be in .net 4.0. the vbc file resides here C:\Windows\Microsoft.NET\Framework\v4.0.xxxx. I know I have at least .net 4.6 installed, but i don't see a new directory for that. So I'm clearly oversimplifying this it seems.

I think I read the vbc.exe is more or less turning legacy and only exists to support older applications? Is there a new way to build standalone dlls like we could using vbc.exe to compile in the latest .net versions?