Function Get-ViSession {
<#
.SYNOPSIS
Lists vCenter Sessions.

.DESCRIPTION
Lists all connected vCenter Sessions.

.EXAMPLE
PS C:\> Get-VISession

.EXAMPLE
PS C:\> Get-VISession | Where { $_.IdleMinutes -gt 5 }
#>
$SessionMgr = Get-View $DefaultViserver.ExtensionData.Client.ServiceContent.SessionManager
$AllSessions = @()
$SessionMgr.SessionList | Foreach {
$Session = New-Object -TypeName PSObject -Property @{
Key = $_.Key
UserName = $_.UserName
FullName = $_.FullName
LoginTime = ($_.LoginTime).ToLocalTime()
LastActiveTime = ($_.LastActiveTime).ToLocalTime()

}
If ($_.Key -eq $SessionMgr.CurrentSession.Key) {
$Session | Add-Member -MemberType NoteProperty -Name Status -Value “Current Session”
} Else {
$Session | Add-Member -MemberType NoteProperty -Name Status -Value “Idle”
}
$Session | Add-Member -MemberType NoteProperty -Name IdleMinutes -Value ([Math]::Round(((Get-Date) – ($_.LastActiveTime).ToLocalTime()).TotalMinutes))
$AllSessions += $Session
}
$AllSessions
}