5.3 install error on Windows 7

I downloaded RawTherapee_5.3_WinVista_64.zip, and when I try to run the executable I get an error:
InstallError

Computer is W10 SP1 64 bit 8gb RAM
This is what I’m trying to install:
http://rawtherapee.com/releases_head/windows/RawTherapee_5.3_WinVista_64.zip

Any ideas? I don’t really like the looks of this message, what would be attempting to make a remote connection and why?

Morning, @noway7454,

Would this be applicable to your setup:
"No more connections can be made to this remote computer at this - Microsoft Community ?

Have fun!
Claes in Lund, Sweden

@Claes thanks, that gave me a clue on solving the problem. Not sure why my searching didn’t bring that up!

I have strict permissions on the shared drive where the install file was located. I simply bumped up the number of simultaneous users allowed (from 1 to 2). I’m guessing something in the install process needs to access the drive as a system or admin user, or something to that effect.