Here is a chunk of code that demonstrates how you can store private settings in the Windows Registry:
# store settings here $Path = "HKCU:\software\powertips\settings" # check whether key exists $exists = Test-Path -Path $Path if ($exists -eq $false) { # if this is first run, initialize registry key $null = New-Item -Path $Path -Force } # read existing value $currentValue = Get-ItemProperty -Path $path $lastRun = $currentValue.LastRun if ($lastRun -eq $null) { [PSCustomObject]@{ FirstRun = $true LastRun = $null Interval = $null } } else { $lastRunDate = Get-Date -Date $lastRun $today = Get-Date $timeSpan = $today - $lastRunDate [PSCustomObject]@{ FirstRun = $true LastRun = $lastRunDate Interval = $timeSpan } } # write current date and time to registry $date = Get-Date -Format 'yyyy-MM-dd HH:mm:ss' $null = New-ItemProperty -Path $Path -Name LastRun -PropertyType String -Value $date -Force
Whenever you run this code, it returns an object telling you when this script was run the last time, and how much time has passed since.
