Hi,

I am comparing two equal variables but I am always getting "FALSE" when I do a proof:

$vCondition1 = Get-ItemProperty HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\"{E95BCA9A-F9ED-48C7-AFB3-4053A0F1E02C}"

$vCondition2 = Get-ItemProperty HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\"{E95BCA9A-F9ED-48C7-AFB3-4053A0F1E02C}"

($vCondition1 -eq $vCondition2)

Those are objects. Test on the properties.

Like mike said something like this

$value1 = Get-ItemProperty 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{012D26C3-E12A-3BDA-8ECE-DF14E721A507}'
$value2 = Get-ItemProperty 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{012D26C3-E12A-3BDA-8ECE-DF14E721A507}'

if($value1.PSChildName -eq $value2.PSChildName)
{
    "Yes - The ID's are same!"
}
else
{
    "Nope - Match failed!"
}

In your code try like this

$vCondition1 = Get-ItemProperty HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\"{E95BCA9A-F9ED-48C7-AFB3-4053A0F1E02C}"

PS C:\> $vCondition1.GetType()

IsPublic IsSerial Name                                     BaseType                                                                                                
-------- -------- ----                                     --------                                                                                                
True     False    PSCustomObject                           System.Object    

Hi your script is working, thanks for that.

But if I edit it for my script it does not work anymore:

$value1 = Get-ItemProperty HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.Publisher -like "Lattice"+"*"}

$value2 = Get-ItemProperty HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.Publisher -like "Lattice"+"*"}

if($value1.PSChildName -eq $value2.PSChildName)

{

    "Yes - The ID's are same!"

}

else

{

    "Nope - Match failed!"

}

What is the actual point of this exercise?

Side note - why are you doing this: "Lattice"+"*"? Just do this 'Lattice*'

What are you actually trying to do? (What is the purpose of the script?)

It looks like you are trying to determine if a software is installed or not.

If that's what you're really trying to do, there's no need to reinvent the wheel.

Windows IT Pro: Auditing 32-Bit and 64-Bit Applications with PowerShell

at the end i have to proof if a registry key exits or not. I will do this in a Loop. Once the key is not theit any more, i have to end the Setup process.

What setup process? Why do you  need to do something in a loop?

Remember, we can't see your screen.

Tell what you want to do, not how you think you need to do it.

at the end i have to proof if a registry key exits or not. I will do this in a Loop. Once the key is not theit any more, i have to end the Setup process.

So you're trying to do some sort of installation kludge?

Do yourself a favor and stop right now. Fix the installation issue instead of doing whatever you're trying to do.

Ok I try to explain.

I am having a Software installed (Name XVL Player / Publisher Lattice) in a lot of different Versions.

On some Computers the software is installed a view times in different Versions.

The Problem is that the Software does not have a silent uninstall Option.

I grab the uninstall string and run it. once the Setup stands at the last window i have to Close that window.

to be sure that the uninstallation was successful i check if the registry still Exits.

if not, i stop the Setup process.

To check a registry key use "Test-Path hklm:\Software\....\keyname"

It is that easy.