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jhance,<br />
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&nbsp; &nbsp;thanks for the answer. but i'm just a greenhorn in using isapi, can u give a some guide or example how to use CreateFile() and DeviceIoControl() to control my parallel port in NT server running IIS. Thanks again for the advise.
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jhance,

   thanks for the answer. but i'm just a greenhorn in using isapi, can u give a some guide or example how to use CreateFile() and DeviceIoControl() to control my parallel port in NT server running IIS. Thanks again for the advise.

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currently i'm using visual c++ 6.0 to create isapi extension. i face a problem to locate my _outp() command. where should i locate it in the program? it will receive the number sent by the user and output it to parallel port at the server side. is it can't be located under on_parse_command() function which has the CHttpServerContext?
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currently i'm using visual c++ 6.0 to create isapi extension. i face a problem to locate my _outp() command. where should i locate it in the program? it will receive the number sent by the user and output it to parallel port at the server side. is it can't be located under on_parse_command() function which has the CHttpServerContext?

isapi extension

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.