My first problem was getting past an error of Viveport saying that Steam was open even though it wasn't, and I am now having the issue of Viveport getting to "Set Store Location" and infinitely loading.
Make sure your internet security software is white-listing Viveport or it may not be able to connect to the server.
I'm sorry to hear you're having issues with that installer. I've opened a support ticket (via customerservice@viveport) to connect you with someone who can assist. Be on the lookout for that email
Technical Specialist - San Francisco, CA; Monday-Friday
Click here to send me a PM
I have whitelisted Viveport and I am encountering the same issue.