Syntax pattern from Microsoft Learn; replace placeholders and choose only one documented alternative before use.
rundll32 <DLLname>rundll32 command
Loads and runs 32-bit dynamic-link libraries (DLLs). This guide lists the documented syntax and parameters for rundll32; check Microsoft Learn for version, role and execution-context requirements.
Documented syntax
rundll32 <DLLname>The linked Microsoft Learn article is the upstream authority. Availability may depend on Windows release, role, optional feature or interactive tool context.
Syntax pattern
Parameters, options and clauses
| Option / clause | Description |
|---|---|
<DLLname> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
Review a command and its target before running it. Commands that alter files, services, accounts, disks, permissions or databases may be difficult to reverse. Test in a safe environment and keep backups.