What should I fill in for the VM ID?
My RDMF the version 2019.2.21.0 64-bit
Hello,
Which type of session are you creating exactly?
Is it possible to post a screenshot please?
Best regards,
Jeff Dagenais

Hello,
You can get the ID value through the vCenter or with PowerShell/PowerCLI command line.
The command line are:
The first command connects with the server, a password prompt will appear:Connect-VIServer {server ip or name};
The second command lists the virtual machines present on the server. It displays the Name and the ID.Get-View -ViewType VirtualMachine | select -Property Name, {$_.Moref.Value};
Best regards,
David Grandolfo

What software do I need to install on my computer?
Hello,
I'm sorry I can't read the error message, that said, if the command is not found. I recommend looking at this Vmware blogs (https://blogs.vmware.com/PowerCLI/2013/03/back-to-basics-connecting-to-vcenter-or-a-vsphere-host.html)
Best regards,
David Grandolfo