Creating Metadata

I’ve been reading the “Metadata Guide” and then, I tried to run the CreateMetadata console app, but I don’t know where I have to run it. I wrote “CreateMetadata.exe” in the Visual Studio’s Command Window but it doesn’t works. I attach a screenshot.

Also, I have a few questions about certificates. In my project, I would like to add signature and encryption.
- When I have to create a certificate? Just one certificate for the whole users or one different certificate for each user?
- Where and when decryption is going to take place?

Thanks in advance.

CreateMetadata is a console application so you should run it from the Windows command line. Follow the input prompts.
You can also run it from the debugger and step through the execution if you wish to see how it works but in that case Visual Studio will open a Windows command line.