Modules are collections of cmdlets that are stored in the path %WINDIR%\System32\WindowsPowerShell\.
Get a List of Windows PowerShell Modules
You can execute the following command to display the location of each directory where these modules are exactly stored at your computer:
write-host "$PSModulePath"
You can get a list of all available modules on your computer by executing the following command:
Get-Module -ListAvailable
There are few modules loaded for basic management tasks. To check which modules are loaded into PowerShell, execute the following command:
Get-Module -All
You can load a particular module by executing the following command:
Import-Module -Name ModuleName
To list commands in a particular module, execute the following command:
Get-Command -Module ModuleName
How to Get a List of Windows PowerShell Modules that can be Imported
to import modules permanently you can copy them creating a folder on C:\Windows\system32\WindowsPowerShell\v1.0\Modules\DCOMPermissions with the name of your script, then inside you can put all your psm1 or ps1 files.