Permissions
Both DataRails installer and the DataRails app do NOT require administrator permissions to run as long as the installing user has write permissions to the target directory.
The default target directory is %APPDATA%/DataRails, which would usually translate to c:\Users\<username>\AppData\Roaming\DataRails.
Nevertheless, the security policy in your organization might not allow installing any program in the default target directory. In such case, DataRails should be installed in the Program Files directory, which means that it needs to be activated with administrator permissions.