| Environment Variable | Description |
| SP_DATA_FOLDER | Name of the folder where Operations Sentinel data resides on Operations Sentinel server. When the external application is run on a workstation that is not the Operations Sentinel server, this is the UNC path. |
| SP_INSTALL_FOLDER | Name of the folder where Operations Sentinel is installed on the workstation. |
| SP_SECONDARY_SERVER | Name of the secondary Operations Sentinel server (null if you have not specified one). |
| SP_SENTINEL_SERVER | Network name of the Server Sentinel server. |
| SP_SERVER | Name of the Operations Sentinel server. |
| SP_WINDOWS_USER **SP_USER **SP_USER_NAME | Name under which the Operations Sentinel Console user logged onto the workstation. |
| SP_WORKSTATION | Name of the Operations Sentinel workstation. |
| SP_ZONE **SP_CONFIGURATION | Name of the Operations Sentinel zone. |
**These environment variables are retained for compatibility until Operations Sentinel level 12.0. If a Command String or application executable currently refers to one of these environment variables, you should update it to use the new name.