PSModulePath

PSModulePath is an environment variable used by Windows PowerShell. It specifies the directories where PowerShell looks for modules. When you import a module, PowerShell searches these locations to find the module's files. This allows users and system administrators to organize and manage PowerShell modules effectively.

The PSModulePath environment variable can contain multiple directory paths, separated by semicolons. PowerShell iterates through these paths in order to locate the requested module. By default, PSModulePath includes system-wide module locations and a user-specific module location. For instance, it typically includes directories like C:\Program Files\WindowsPowerShell\Modules and a user's Documents\WindowsPowerShell\Modules folder.

Users can customize PSModulePath to include their own custom module directories. This is useful for developers who create their own modules or for distributing modules that are not part of the default PowerShell installation. Modifying PSModulePath is typically done through the System Properties dialog in Windows or by directly editing the environment variables. It is important to ensure that the paths added to PSModulePath are valid and that the directories contain the expected module files in the correct structure. Incorrectly configured PSModulePath can lead to modules not being found or imported properly.