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WebSphere Application Server plug-in for IIS fails to run on Windows 64-bit

Troubleshooting


Problem

The WebSphere Application Server plug-in for Internet Information Services (IIS) fails to run on Windows 64-bit.

Symptom

When the WebSphere Application Server plug-in for IIS is configured on a 64-bit version of Windows, the ISAPI Filter registered for the WebSphere plug-in fails to load properly and requests for WebSphere Application Server content fail with one of the following errors reported in the browser:

HTTP 404 - File or directory not found.
HTTP 404 - File not found.
HTTP 404 - Not found.

Additionally, the following error may be reported in the Windows Event log of the IIS machine:

ISAPI Filter '...\iisWASPlugin_http.dll' could not be loaded due to a configuration problem. The current configuration only supports loading images built for a AMD64 processor architecture. The data field contains the error number.

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Plug-in","Platform":[{"code":"PF033","label":"Windows"}],"Version":"8.5;8.0;7.0","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Document Information

Modified date:
03 March 2025

UID

swg21370300