How to Install an Isapi Filter DLL

• Microsoft Internet Information Server version 1.0 ---------------------------------------------------------------------

SUMMARY

ISAPI filters can be used with Internet Server to add features such as monitoring HTTP transactions or authentication. Filters can be loaded when the W3 service starts if they are added to a special key in the registry.

MORE INFORMATION

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

To install an ISAPI filter for use with a Microsoft Internet Server, do the following:

1. Copy the filter DLL to an appropriate subdirectory, such as the SCRIPTS or CGI-BIN subdirectory.

2. Run Regedt32.exe.

3. Add the full path of the filter DLL to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W3SVC\ Parameters\Filter DLLs

   NOTE: If there is more than one filter DLL file, separate them with commas; for example, c:\inetsrv\Server\sspifilt.dll,c:\inetsrv\scripts\myfilter.dll