Trying to set up command line Subversion on a windows box to access SVN+SSH wasn’t as easy as it is on *nix machines.
Trying to do something like:
svn list svn+ssh://<user>@<host>:<svnPath>
results in the following error message:
svn: Can’t create tunnel: The system cannot find the file specified.
This website had the answer (an SSH executable wasn’t in the path and needed to be). Then follow this guide to set up private/public keys.