CGI variable symbols:

  WWW_AUTH_TYPE == ""
  WWW_CONTENT_LENGTH == "0"
  WWW_CONTENT_TYPE == ""
  WWW_CSP_NONCE == "f3a7286258462f1cc94755aba58ee77"
  WWW_DOCUMENT_ROOT == ""
  WWW_GATEWAY_EOT == "$D-682F821059B5F6D10B10425E-"
  WWW_GATEWAY_ESC == "$E-F1C1EB475C8302DCBEEA762D-"
  WWW_GATEWAY_INTERFACE == "CGI/1.1"
  WWW_GATEWAY_MRS == "16492"
  WWW_GATEWAY_QIO == "30408"
  WWW_GATEWAY_SYMBOLS == "WWW_AUTH_TYPE,WWW_CONTENT_LENGTH,WWW_CONTENT_TYPE,WWW_CSP_NONCE,WWW_DOCUMENT_ROOT,WWW_GATEWAY_INTERFACE,WWW_GATEWAY_EOT,WWW_GATEWAY_ESC,WWW_GATEWAY_MRS,WWW_GATEWAY_QIO,WWW_HTTP_ACCEPT,WWW_HTTP_USER_AGENT,WWW_HTTP_ACCEPT_ENCODING,WWW_HTTP_HOST,WWW_PATH_INFO,WWW_PATH_ODS,WWW_PATH_TRANSLATED,WWW_QUERY_STRING,WWW_REMOTE_ADDR,WWW_REMOTE_HOST,WWW_REMOTE_PORT,WWW_REMOTE_USER,WWW_REQUEST_METHOD,WWW_REQUEST_PROTOCOL,WWW_HTTP2_PING,WWW_REQUEST_SCHEME,WWW_REQUEST_TIME_GMT,WWW_REQUEST_TIME_LOCAL,WWW_REQUEST_URI,WWW_SCRIPT_FILENAME,WWW_SCRIPT_NAME,WWW_SERVER_ADDR,WWW_SERVER_CHARSET,WWW_SERVER_GMT,WWW_SERVER_NAME,WWW_SERVER_PROTOCOL,WWW_SERVER_PORT,WWW_SERVER_SIGNATURE,WWW_SERVER_SOFTWARE,WWW_UNIQUE_ID,WWW_KEY_COUNT"
  WWW_HTTP2_PING == "366.000"
  WWW_HTTP_ACCEPT == "*/*"
  WWW_HTTP_ACCEPT_ENCODING == "gzip, br, zstd, deflate"
  WWW_HTTP_HOST == "wasd.vsm.com.au"
  WWW_HTTP_USER_AGENT == "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  WWW_KEY_COUNT == "0"
  WWW_PATH_INFO == "/ht_root"
  WWW_PATH_ODS == "5"
  WWW_PATH_TRANSLATED == "WASD_ROOT:[000000]ht_root"
  WWW_QUERY_STRING == ""
  WWW_REMOTE_ADDR == "216.73.216.85"
  WWW_REMOTE_HOST == "216.73.216.85"
  WWW_REMOTE_PORT == "35314"
  WWW_REMOTE_USER == ""
  WWW_REQUEST_METHOD == "GET"
  WWW_REQUEST_PROTOCOL == "HTTP/2"
  WWW_REQUEST_SCHEME == "https:"
  WWW_REQUEST_TIME_GMT == "Sun, 08 Jun 2025 02:27:42 GMT"
  WWW_REQUEST_TIME_LOCAL == "Sun, 08 Jun 2025 11:57:42"
  WWW_REQUEST_URI == "/cgi-bin/cgicalloutproc/ht_root"
  WWW_SCRIPT_FILENAME == "CGI-BIN:[000000]CGICALLOUTPROC.COM"
  WWW_SCRIPT_NAME == "/cgi-bin/cgicalloutproc"
  WWW_SERVER_ADDR == "119.252.17.13"
  WWW_SERVER_CHARSET == "ISO-8859-1"
  WWW_SERVER_GMT == "+09:30"
  WWW_SERVER_NAME == "wasd.vsm.com.au"
  WWW_SERVER_PORT == "443"
  WWW_SERVER_PROTOCOL == "HTTP/1.1"
  WWW_SERVER_SIGNATURE == "<address>WASD/12.3.1 Server at wasd.vsm.com.au Port 443</address>"
  WWW_SERVER_SOFTWARE == "HTTPd-WASD/12.3.1 OpenVMS/IA64 SSL"
  WWW_UNIQUE_ID == "f65a0a707efcb2a5459"

CGI(plus) callout example:

Map '/ht_root' using the following callout request ...

  "MAP-FILE: /ht_root"

Server response was ...

  "200 wasd_root:[000000]ht_root"

Yielding a file specification of ...

  wasd_root:[000000]ht_root