[System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic') | Out-Null

$scriptPath = split-path -parent $MyInvocation.MyCommand.Definition

if (Test-Path $scriptPath\servers.csv) {
    $csv = Import-Csv $scriptPath\servers.csv
} elseif (Test-Path $scriptPath\..\servers.csv) {
    $csv = Import-Csv $scriptPath\..\servers.csv
} else {
    [Microsoft.VisualBasic.Interaction]::MsgBox("Could not find .\servers.csv or ..\servers.csv.", 16, "Error")
    exit
}

$domainUser = [Environment]::UserDomainName+"\"+[Environment]::UserName
$credentials = Get-Credential -Message "Domain Admin Credentials" -UserName $domainUser

$uncPath = [Microsoft.VisualBasic.Interaction]::InputBox("Path (no trailing slash): \\server\", "Path", "")

$uncFileName = [Microsoft.VisualBasic.Interaction]::InputBox("Filename:", "Filename", "")

$credPassword = $credentials.GetNetworkCredential().Password
$credUser = $credentials.UserName

if ($uncPath -and $uncFileName -and $credPassword -and $credUser) {
    Remove-Item $scriptPath\results.txt | Out-Null

    foreach ($line in $csv) {
        $uncServer = $line.Name
        $server = "\\" + $uncServer + "\C$"

        $networkLocation = New-PSDrive -Name "PowerShell" –PSProvider FileSystem –Root $server -Credential $credentials

        try {
            $filename = "\\" + $uncServer + "\" + $uncPath + "\" + $uncFileName
            if (Test-Path $filename) {
                Write-host $uncServer":" $filename
                Add-Content $scriptPath\results.txt $filename
            } else {
                Write-host $uncServer":"
            }
        } catch [System.Exception] {
            Write-host "Error: $_.Exception.Message"
        }

        Remove-PSDrive "PowerShell"
    }

    notepad.exe $scriptPath\results.txt

} else {
    switch ("") {
        $uncPath {"Path cannot be empty."}
        $uncFileName {"Filename cannot be empty."}
        $credPassword {"Password not supplied."}
        $credUser {"Username not supplied."}
    }
}
Read-Host