Summary: Use the Get-PSProvider cmdlet to find Windows PowerShell providers that support transactions.

 How can you find out which Windows PowerShell providers on your system support transactions?

 Use the Get-PSProvider cmdlet and pipe the results to Where-Object to filter out capabilities that include transactions.

In Windows PowerShell 3.0:

Get-PSProvider | ? capabilities -match transactions

In Windows PowerShell 2.0:

Get-PSProvider | ? {$_.capabilities -match ‘transactions’}