Summary: Use Windows PowerShell to determine if a string contains a wildcard character.

 How can I use Windows PowerShell to determine if a string contains a wildcard character?

 Use the static ContainsWildcardCharacters method from the System.Management.Automation.WildcardPattern
           .NET Framework class, for example:

PS C:\> $wc = '*'

PS C:\> $wc

*

PS C:\> [System.Management.Automation.WildcardPattern]::ContainsWildcardCharacters($wc)

True