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[CmdletBinding(SupportsShouldProcess=$True,DefaultParameterSetName="None")]
PARAM(
	[switch]$AllUsers
)

begin {

	# Adminsitrator role check
	function IsLocalAdministrator() {
		$CurrentWindowsIdentity = [System.Security.Principal.WindowsIdentity]::GetCurrent()
		$CurrentWindowsPrincipal = New-Object System.Security.Principal.WindowsPrincipal($CurrentWindowsIdentity)
		$IsInWindowsBuiltInAdministratorRole = $CurrentWindowsPrincipal.IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator)
		return $IsInWindowsBuiltInAdministratorRole
	}

	try {
		$WshShell = New-Object -ComObject WScript.Shell
	} catch {
		$_
		return
	}
	$InstallDir = (Get-Item -Path "$env:PROGRAMFILES\LastPass\lastpass.exe" -ErrorAction SilentlyContinue | Select "Directory" -ErrorAction SilentlyContinue).Directory.FullName
	if (!$InstallDir) {
		$InstallDir = (Get-Item -Path "$env:PROGRAMFILES (x86)\LastPass\lastpass.exe" -ErrorAction SilentlyContinue | Select "Directory" -ErrorAction SilentlyContinue).Directory.FullName
	}
	if (!$InstallDir) {
		# Fake it
		$InstallDir = "$env:PROGRAMFILES (x86)\LastPass"
	}
}

process {
	$BaseFileName = "My LastPass Vault"
	$BaseFolder = [Environment]::GetFolderPath("Desktop")
	if ($AllUsers -and (IsLocalAdministrator)) {$BaseFolder = [Environment]::GetFolderPath("CommonDesktopDirectory")}
	$shortcutPath = Join-Path -Path $BaseFolder -ChildPath "$($BaseFileName).lnk"
	try {
		$Shortcut = $WshShell.CreateShortcut($shortcutPath)
		$Shortcut.TargetPath = "https://lastpass.com/home.php"
		$Shortcut.WorkingDirectory = "$InstallDir"
		$Shortcut.IconLocation = "$InstallDir\lastpass.exe, 0"
		$Shortcut.WindowStyle = 1
		$Shortcut.Description = $BaseFileName
	} catch {
		$_
		return
	}

	try {
		$Shortcut.Save()
		"Shortcut created successfully ($($shortcutPath))"
		return
	} catch {
		$_
		return
	}
}

end {
}