RDP Wrap helps to allow for multiple connections to remote desktop on eg Windows 7 or Windows 10. I tried to install rdpwrap going to https://github.com/stascorp/rdpwrap/ and I tried running the MSI under "releases", RDPWInst-v1.6.2.msi and it gave some error, and when I tried to reinstall it and I got no error and it wasn't clear what i'm meant to run or what if anything was intalled. And no concurrent/simultaneous remote desktop either.
Then I tried to uninstall it and it prompted me to allow c:\windows\installer\c4d5253.msi to run. I said yes. And it said "There is a problem with this windows installer package".
Note- I have a solution and will post an answer.