Scripting

Hi Guys

I have the following script that I've put together.

I need to load a xlam add-in into the current logged on user. Unfortunately we have both 32 and 64 bit OS machines. So the installation directory that holds the xlam add-in can be in either C:\Program Files\<program> or C:\Program Files (x86)\<program> depending on the os architecture.

The script I have below seems to work on 32bit OS and doesn't load on x64 OS, I can't see any error messages either. Essentially the add-in doesn't load, any help would be greatly appreciated.

$Addinfilename = 'AdvanceOffice.xlam'
$Addinfilepath = 'C:\Program Files\Datastream\Datastream Advance\'
$Addinfilepath64 = 'C:\Program Files (x86)\Datastream\Datastream Advance\'
$Excel = New-Object -ComObject excel.application
$ExcelWorkbook = $excel.Workbooks.Add()
$os_type = (Get-WmiObject -Class Win32_ComputerSystem).SystemType -match '(x86)'

if ($os_type -eq "True") {
        $ExcelWorkbook.Application.AddIns | Where-Object {$_.name -eq $Addinfilename} -eq $null
        $ExcelAddin = $ExcelWorkbook.Application.AddIns.Add("$Addinfilepath$Addinfilename", $True)
        $ExcelAddin.Installed = "True"
        Write-Host "$Addinfilename added"        
        Write-host "32 bit Windows OS"
        Write-Host $os_type
 Else {
    ($os_type -NotLike "True")
    $ExcelWorkbook.Application.AddIns | Where-Object {$_.name -eq $Addinfilename} -eq $null  
    $ExcelAddin = $ExcelWorkbook.Application.AddIns.Add("$Addinfilepathx64$Addinfilename", $True)
    $ExcelAddin.Installed = "True"
    Write-Host "$Addinfilename added"}
    $Excel.Quit()
       
}