| Variable | Meaning,Value |
| ABELDATA | %ALLUSERSPROFILE%\Seiz System Engineering\AbelCam Location of configuration files |
| ACTIVECAMS | active camera numbers, separated by commas |
| CAMFPS | frame rate of the current camera |
| CAMNAME | name of the current camera |
| CAMNAMES | names of active cameras, separated by commas |
| CAMNR | active cam number |
| CAMRESOLUTION | active cam resolution, eg. 320x240 |
| COOKIES | cookies set for AbelCam, eg. cam="0" |
| DOC_ROOT | AbelCam document root |
| HTTP_REFERER | refering page, eg. http://localhost:8080/php/index.php |
| OUTPUTHEIGHT | output height of current camera, eg. 240 |
| OUTPUTWIDTH | output width of current camera, eg. 320 |
| REDIRECT_STATUS | always set to 200 |
| REMOTE_ADDR | ip address of requestor, eg. 127.0.0.1 |
| REQUEST_METHOD | GET |
| SCRIPT_FILENAME | script file name, eg. index.php |
| SCRIPT_NAME | same as above |
| SERVER_CONFDIR | installation folder, eg. C:\ProgramData?\Seiz System Engineering\AbelCam |
| SERVER_NAME | AbelCam server name, eg. localhost |
| SERVER_PORT | AbelCam server port, eg. 8080 |
| SERVER_PROTOCOLL | always HTTP/1.1 |
| SERVER_SOFTWARE | AbelCam version, eg. AbelCam 2.1.1 Pro |
| ORIG_PATH_INFO | script relative to document root, eg. /php/index.php |