Alternatives to Win32_Product

I’m curious about what alternatives you use for querying Win32_product via WMI? As per Microsoft this is a bad thing I can ask Google, and I know some alternatives but I’m curious as to what you all do.

So while Get-WmiObject win32_Product is great, it’s triggering MSI Installer for every application.

Can you clarify what you mean by “it’s triggering MSI installer for every application”, and “as per Microsoft this is a bad thing”? I use Win32_Product and haven’t run into any issues with MSI installer.


You bet. On Windows 7 SP1 open Powershell and run this command: Get-WmiObject win32_Product

When finished open your Event Viewer, and go to Application. You should see many messages stating:
Windows Installer reconfigured the product. Product Name: . Product Version: Product Language: . Manufacturer: . Reconfiguration success or error status: 0.

To quote the article I linked:

Win32_product Class is not query optimized. Queries such as “select * from Win32_Product where (name like 'Sniffer%')” require WMI to use the MSI provider to enumerate all of the installed products and then parse the full list sequentially to handle the “where” clause. This process also initiates a consistency check of packages installed, verifying and repairing the install. With an account with only user privileges, as the user account may not have access to quite a few locations, may cause delay in application launch and an event 11708 stating an installation failure.

That would be why it’s bad. Initiating a consistency check, verifying, and repairing the install. If this were a server and not a client OS, it could cause big potential problems.

It has been stated, not by Microsoft, that the message is false positive. It does not actually trigger a repair. But, are you willing to gamble that?

Are you trying to get program information?

I usually enumerate the registry.

Take a look at this key (remove the wow for 32-bit machines):

Maybe you could do something like this:

<pre class="lang:ps decode:true " >gp -Path HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall* | select DisplayName,Publisher,Version,UninstallString

Clearly I read your original post too early in the morning, because I had Win32_Process on the brain, not Win32_Product, which totally makes sense now. I’ll blame it on the fact that I don’t drink coffee or caffeine. :slight_smile:

I don’t know of alternatives for Win32_Product though with perhaps the exception of going into the Registry and getting the information on the installed products directly from there.

Yup, so far the registry is my only alternative. Which is fine. Just looking for ideas :slight_smile: