Provide Binary Name

Solution after break.

Click here to join Ultra.io - Rare NFTs and Play-to-Earn Games

This is often a very simple problem. Often, you simply forgot the file extension, e.g. shdocvw.dll

In order to register a DLL file, you must provide the full DLL filename including the extension DLL.

So, simply try this: regsvr.dll DLLfilename.dll