C# COM DLL: do I use Regasm, or Regsvr32?

Question

I am building a C# ActiveX DLL... do I use REGASM or REGSVR32 to register it?

How do I register the 64-bit interface vs the 32-bit interface?

Answer 1

If the DLL is build in format of "Any CPU", no matter if you choose regasm in

C:\Windows\Microsoft.NET\Framework\v2.0.50727

or

C:\Windows\Microsoft.NET\Framework64\v2.0.50727

DLL would be registered as 32-bit.