$username = "theusername"
$password = "thepassword"
$secpassword = ConvertTo-SecureString –String $password –AsPlainText -Force
$credential = New-Object –TypeName "System.Management.Automation.PSCredential" –ArgumentList $username, $secpassword
$so = New-PSSessionOption -SkipCACheck
$session = New-PSSession -ConnectionUri "https://servername:5986/WSMAN" -SessionOption $so -Credential $credential

Invoke-Command -Session $session -ScriptBlock { "powershell E:\ToolsPowershellsMyPowershell.ps1" }

Exit-PSSession