NEW SCCM Detection Script Help When No Uninstaller Present?

[spicehead-53186]

Hello All,
I am BRAND NEW to SCCM and Scripting but I'm learning and boy is it fun!!

Detection method is to confirm if the s/w is installed correct? However most of the scripts I have seen seem to point to HKLM:\SOFTWARE\$_\Microsoft\Windows\CurrentVersion\Uninstall\ to confirm if the software is installed or not. However what if the software is not located in that registry then what do you do? Here is the scripts I was using to see if the s/w was installed or not.

s/w = Software XYZ
ver. = 10.3.0.3

-eq is equals
-ge is greater than or equals


Old WMI Detection Method:

$software = Get-WmiObject win32_product | where {$_.Name -eq "Software XYZ"} | where {$_.Version -ge "10.3.0.3"};if ($software) {$true}

New Get-ChildItem Detection Method:

$software = Get-ChildItem HKLM:\SOFTWARE\$_\Microsoft\Windows\CurrentVersion\Uninstall\ | ? {($_.GetValue("DisplayName")) -eq "Software XYZ"} | Where-Object {($_.GetValue("DisplayVersion")) -ge "10.3.0.3"};if ($software) {$true}

Not knowing better I did a search in the registry by software name and version and found where it seems to be located in the registry:

HKLM:\SOFTWARE\$_\Classes\Installer\Dependencies\

So with the help of google I came up with this script that seems to work, but I don't know how to figure out how to also add the version number as shown in the old/new detection methods above?

new NEW Detection Method:

$software = "Software XYZ";
$installed = (Get-ItemProperty HKLM:\SOFTWARE\$_\Classes\Installer\Dependencies\* | Where { $_.DisplayName -eq $software }) -ne $null

If(-Not $installed) {
    Write-Host "'$software' is NOT installed.";
} else {
    Write-Host "'$software' is installed."
}

Any and all input greatly appreciated, and feel free to let me know any tips and critics that will help me learn all this stuff better!

Regards,

Spicehead-53186

 

[Garth]

First off not use win32_product is a good thing, https://gregramsey.net/2012/02/20/win32_product-is-evil/

Next remember that your version number is NOT a number but a string.