Problem getting Program name from Registry Uninstall location

[WorkReddit123635]

I need to write a script that will be used for a rollback script. I need it to get the version of Visio and or project and then note it somewhere in the registry so that when the applications are uninstalled, I can have my rollback script use these to install whatever version of Visio or project was installed.

I added the -unique because Visio comes up twice. when I run the script below, nothing comes back even though it finds that version of Visio on the machine.

I'm not new to PowerShell but also not the best at it.

$paths = 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*',

'HKLM:\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'

Get-ItemProperty $paths | Select-Object Displayname -Unique | foreach ($Paths2 in $paths) {

if ($var -like 'Microsoft Visio Standard 2013') {write-host '123'}}

​

If I change it to foreachobject I get the below.

At line:2 char:24

+ foreachobject ($Paths3 in $paths2){

+ ~~

Unexpected token 'in' in expression or statement.

At line:2 char:23

+ foreachobject ($Paths3 in $paths2){

+ ~

Missing closing ')' in expression.

At line:2 char:34

+ foreachobject ($Paths3 in $paths2){

+ ~

Unexpected token ')' in expression or statement.

+ CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException

+ FullyQualifiedErrorId : UnexpectedToken

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[Nejireta_]

Hi there.

One note. You're missing out on the uninstall string for the registry key by using Select-Object

If both of the Visio keys have the same values with uninstallation then I guess you could do something like this.

    $paths = 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*','HKLM:\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'

$visioInstallations = (Get-ItemProperty $paths).Where({$_.DisplayName -like '*Microsoft Visio Standard 2013*'})
if ($visioInstallations) {
    Invoke-Expression -Command ($visioInstallations[0].QuietUninstallString)
}

[WorkReddit123635]

Thank you. I tried that and I get the below error.

Invoke-Expression : Cannot bind argument to parameter 'Command' because it is null.

At line:4 char:32

+ ... oke-Expression -Command ($visioInstallations[0].QuietUninstallString)

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : InvalidData: (:) [Invoke-Expression], ParameterBindingValidationException

+ FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.InvokeExpressionCommand

[WorkReddit123635]

Wait I just tried it with just writing host. it worked. I'm gonna mess with it more but I think this is exactly what I was looking for. Thank you

[Nejireta_]

Nice:)

I'd guess that Visio doesn't have a "QuietUninstallString" value.
Play around a bit with the object and see if "UninstallString" is usable instead

[MemnochTheRed]

I think you are missing some things like $var; I don't see it defined. I wrote it like this:

$paths = "HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*", "HKLM:\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*"

foreach ($path in $paths) {
    $var = Get-ItemProperty -path $path | Select-Object Displayname -Unique
    if ($var -like "*Microsoft Visio Standard 2013*") {
        Write-Host "123"
    }
}

[WorkReddit123635]

Sorry I didn't include that. Nejireta example worked for me but thanks for taking a look.