What does HRESULT 0xC00D1582 (NS_E_SCRIPT_DEBUGGER_NOT_INSTALLED) mean?

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Description:

The plug-in cannot be enabled because a compatible script debugger is not installed on this system.  Install a script debugger, or disable the script debugger option on the general tab of the plug-in's properties page and try again.%0

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NS_E_MEDIA_PARSER_INVALID_FORMAT	NS_E_FEATURE_REQUIRES_ENTERPRISE_SERVER

NS_E_SCRIPT_DEBUGGER_NOT_INSTALLED

What the server is validating

This result (0xC00D1582) marks script debugging is enabled but no compatible debugger is installed.

Windows Media Services selects plug-ins by class, registration, enabled state and advertised format or protocol; the server may successfully load one plug-in class while failing to find the data source, parser or script engine required by a particular request. In the trace, record the selected plug-in CLSID, class, load type, enabled state and custom error event. When diagnosing this result, plug-in discovery and plug-in execution fail differently.

A controlled correction

Capture 0xC00D1582, this result, the exact API/administrative action and the first failure timestamp.
Preserve script engine, debug flag, registered debugger components, server architecture and plug-in property page state.
Perform one isolated experiment: install a compatible debugger for deliberate debugging or disable the debugger option in production.

Code-specific failure anatomy

A representative occurrence is when script debugging is enabled but no compatible debugger is installed. Capture script engine, debug flag, registered debugger components, server architecture and plug-in property page state together with the object instance and the exact administrative or protocol request.

For a useful negative control, install a compatible debugger for deliberate debugging or disable the debugger option in production.

The tempting but misleading response is reinstalling the script engine when normal script execution already works. That action does not test the distinction that matters here: no script engine prevents execution; it is specific to the optional debugging path.

Build a reproducible incident record

Controlled comparison

Use a known-good object of the same type and vary only the precondition described as “script debugging is enabled but no compatible debugger is installed”.

Changes that do not establish the cause

reinstalling the script engine when normal script execution already works.

Do not merge nearby HRESULT values

Primary distinction: no script engine prevents execution; it is specific to the optional debugging path.

Nearby result	Different condition
`NS_E_FEATURE_REQUIRES_ENTERPRISE_SERVER`	the selected plug-in/feature is restricted to an Enterprise/Datacenter-capable server edition.
`NS_E_MEDIA_PARSER_INVALID_FORMAT`	the selected media parser rejects the content bytes as an invalid or damaged stream.
`NS_E_NO_SCRIPT_ENGINE`	a script-backed playlist or plug-in has no compatible script engine available.

Technical references

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