I think I have found a bug in both the manual and auto install forms provided by cubecart :-(

I have cubecart installed in:
C:/Inetpub/vhosts/domain.com/httpsdocs/store
accessable by https://www.domain.com/store

The correct forms for the directories are:
Store URL: https://www.domain.com/store is correct

Server Root Directory: c:\Inetpub\vhosts\domain.com\httpsdocs\store is incorrect. Slashes used should be / and should start with a drive letter (c:/, d:/ ...)
c:/Inetpub/vhosts/domain.com/httpsdocs/store
and don't forget...no end slash like below

Site Root Relative Path: e.g. /store/ (Including End Slash)
/store/

I'm guessing the forms are picking up \ slashes cause they are querying sources within and receive from that point of view. The pages are working from outside and are supposed to use / slashes

in windows \ is a path delimiter
and on the internet / is a path delimiter

This is why we recommend Linux/Unix as the recommended platform. Some Windows servers work with Linux style paths.

This will be rectified in 3.1.

strange cube cart would write software for and operating system they dont recommend....easy fix if you make final output require forward slashes before pasting into fields