Answer by Josh for Use -notlike to filter out multiple strings in PowerShell

In order to support "matches any of ..." scenarios, I created a function that is pretty easy to read. My version has a lot more to it because its a PowerShell 2.0 cmdlet but the version I'm pasting below should work in 1.0 and has no frills.

You call it like so:

Get-Process | Where-Match Company -Like '*VMWare*','*Microsoft*'
Get-Process | Where-Match Company -Regex '^Microsoft.*'

filter Where-Match($Selector,[String[]]$Like,[String[]]$Regex) {

    if ($Selector -is [String]) { $Value = $_.$Selector }
    elseif ($Selector -is [ScriptBlock]) { $Value = &$Selector }
    else { throw 'Selector must be a ScriptBlock or property name' }

    if ($Like.Length) {
        foreach ($Pattern in $Like) {
            if ($Value -like $Pattern) { return $_ }
        }
    }

    if ($Regex.Length) {
        foreach ($Pattern in $Regex) {
            if ($Value -match $Pattern) { return $_ }
        }
    }

}

filter Where-NotMatch($Selector,[String[]]$Like,[String[]]$Regex) {

    if ($Selector -is [String]) { $Value = $_.$Selector }
    elseif ($Selector -is [ScriptBlock]) { $Value = &$Selector }
    else { throw 'Selector must be a ScriptBlock or property name' }

    if ($Like.Length) {
        foreach ($Pattern in $Like) {
            if ($Value -like $Pattern) { return }
        }
    }

    if ($Regex.Length) {
        foreach ($Pattern in $Regex) {
            if ($Value -match $Pattern) { return }
        }
    }

    return $_

}