Create a symbolic link to a file with mklink within your repository, for example:mklink /path/to/link /path/to/targetExport the the repository:svn export /path/to/repository /path/to/destinationEdit the file /path/to/link, you will see a content similar to:link /path/to/targetIn other words, the symbolic link is not "expanded".
Symbolic links to folders are exported correctly.