Function UninstallOldApplication($Description) {

#Declare Local Memory

Set-Variable -Name AppName -Scope Local -Force

Set-Variable -Name Arguments -Scope Local -Force

Set-Variable -Name Code -Scope Local -Force

Set-Variable -Name GUID -Scope Local -Force

Set-Variable -Name Output -Scope Local -Force

#Change '%application%' to whatever app you are calling

$Description = [char]34+"description like"+[char]32+[char]39+[char]37+$Description+[char]37+[char]39+[char]34

$Output = wmic product where $Description get IdentifyingNumber

$Output1 = wmic product where $Description get Description

$Output1 | ForEach-Object {

$_ = $_.Trim()

if(($_ -ne "Description")-and($_ -ne "")){

$AppName = $_

}

}

Write-Host "Uninstalling"$AppName"....." -NoNewline

$Output | ForEach-Object {

$_ = $_.Trim()

if(($_ -ne "IdentifyingNumber")-and($_ -ne "")){

$GUID = $_

}

}

$Arguments = "/X"+[char]32+$GUID+[char]32+"/qb- /norestart"

$Code = (Start-Process -FilePath "msiexec.exe" -ArgumentList $Arguments -Wait -Passthru).ExitCode

If ($Code -eq 0) {

Write-Host "Uninstalled" -ForegroundColor Yellow

} else {

Write-Host "Failed" -ForegroundColor Red

}

#Cleanup Local Memory

Remove-Variable -Name AppName -Scope Local -Force

Remove-Variable -Name Arguments -Scope Local -Force

Remove-Variable -Name Code -Scope Local -Force

Remove-Variable -Name GUID -Scope Local -Force

Remove-Variable -Name Output -Scope Local -Force

Remove-Variable -Name Output1 -Scope Local -Force

}