Internet Server Application Programming Interface
<World-Wide Web> (ISAPI) Microsoft's programming interface between
applications and their Internet Server. Active Servers created with ISAPI
extensions can be complete in-process applications themselves, or can "connect"
to other services. ISAPI is used for the same sort of functions as CGI but uses
Microsoft Windows dynamic link libraries (DLL) for greater efficiency. The
server loads the DLL the first time a request is received and the DLL then stays
in memory, ready to service other requests until the server decides it is no
longer needed. This minimises the overhead associated with executing such
applications many times.
An HTTP server can unload ISAPI application DLLs to free memory or preload them
to speed up the first access. Applications can also be enhanced by ISAPI filters
(1997-01-06)
Nearby terms:
Internet Research Steering Group « Internet Research
Task Force « Internet Security Association and Key
Management Protocol « Internet Server Application
Programming Interface » Internet Service
Provider » Internet Society » Internet Telephony
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