CGI variable symbols:

  WWW_AUTH_TYPE == ""
  WWW_CONTENT_LENGTH == "0"
  WWW_CONTENT_TYPE == "text/plain"
  WWW_DOCUMENT_ROOT == ""
  WWW_GATEWAY_EOT == "$D-FBD011814802914E5CBD5177-"
  WWW_GATEWAY_ESC == "$E-3234474C22C7F3DDF55D80FA-"
  WWW_GATEWAY_INTERFACE == "CGI/1.1"
  WWW_GATEWAY_MRS == "4096"
  WWW_HTTP_ACCEPT == "*/*"
  WWW_HTTP_ACCEPT_ENCODING == "gzip, br, zstd, deflate"
  WWW_HTTP_CACHE_CONTROL == "max-age=0"
  WWW_HTTP_CONNECTION == "keep-alive"
  WWW_HTTP_HOST == "timmersit.nl"
  WWW_HTTP_USER_AGENT == "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  WWW_HTTP_VIA == "1.1 squid-proxy-75b5465b89-ssffc (squid/6.10)"
  WWW_HTTP_X_FORWARDED_FOR == "10.1.28.249"
  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 == "216.73.216.75"
  WWW_REMOTE_HOST == "216.73.216.75"
  WWW_REMOTE_PORT == "17846"
  WWW_REMOTE_USER == ""
  WWW_REQUEST_METHOD == "GET"
  WWW_REQUEST_PROTOCOL == "HTTP/1.1"
  WWW_REQUEST_SCHEME == "http:"
  WWW_REQUEST_TIME_GMT == "Fri, 23 May 2025 19:56:10 GMT"
  WWW_REQUEST_TIME_LOCAL == "Fri, 23 May 2025 21:56:10"
  WWW_REQUEST_URI == "/cgi-bin/cgicalloutproc/ht_root"
  WWW_SCRIPT_FILENAME == "CGI-BIN:[000000]CGICALLOUTPROC.COM"
  WWW_SCRIPT_NAME == "/cgi-bin/cgicalloutproc"
  WWW_SECURITY_STATUS == "NONE"
  WWW_SERVER_ADDR == "192.168.1.31"
  WWW_SERVER_CHARSET == "ISO-8859-1"
  WWW_SERVER_GMT == "+02:00"
  WWW_SERVER_NAME == "vms1.timmersit.nl"
  WWW_SERVER_PORT == "80"
  WWW_SERVER_PROTOCOL == "HTTP/1.1"
  WWW_SERVER_SIGNATURE == "<address>WASD/11.3.0 Server at vms1.timmersit.nl Port 80</address>"
  WWW_SERVER_SOFTWARE == "HTTPd-WASD/11.3.0 OpenVMS/AXP"
  WWW_UNIQUE_ID == "aDDu_gAAAAQAAgKdSIc"

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