Invoke-Item (which has an alias, ii) has a number of different uses. Invoke-Item will open or execute an object using the default settings for that file:
Invoke-Item . # Open the current directory in explorer Invoke-Item test.ps1 # Open test.ps1 in the default editor Invoke-Item $env:windirsystem32cmd.exe # Open cmd Invoke-Item Cert:# Open the certificate store MMC for the current user
The registry provider does not support Invoke-Item.