sounds odd.. an msi ought to have a ProductCode, unless you mean something else
check it with orca (which is burried somewhere in a sub installation of Platform SDK, or use a script, there are several around that can check in the msi's installer database)
or check it's registration in the registry (various locations)
I looked around a bit, and in the enterprise I work, we just download the msi from website here, and asure only that version is deployed.
downloading several versions, you could check it's digital signature (looks like june 21) aside it's size if the name differs
this is what I have at the moment (bytes, name):
... 6MB? one would think that one was missing half (32bit-64bit).. like a repackaged installer
when a new version of flash is available i get it from http://www.adobe.com/products/flashplayer/distribution3.html
i use Specops for deployment. in my deployments i target windows installer GUID's for upgrades.
looking at prog's and features you can see 2 different installs:
this install (16.9MB) with a GUID is the *.msi package from http://www.adobe.com/products/flashplayer/distribution3.html (Plugin)
the first 6MB install is direct from http://get2.adobe.com/flashplayer/.....just to confirm what im saying i just installed it on my VM and got the same 6MB install and no GUID.
looking at all digital signatures for the .msi packages it lists Friday, June 21, 2013 7:16:27 PM
im not sure if im getting the wrong package from adobe or why is the web installer different from the enterprise deployment .msi?
i guess this has baffeled everyone that works at adobe? no answers?
Looks like screenshots from Programs and Features
I have never looked into that, as those numbers were never an issue.
There is some algorithm that defines Size based on installed package.
But rarely those figures present the actual occupied disk space of the installed software.
Possibly, I didn't check this, the flash installers register differently. MS Office for example uses 1 entry (PROPLUS) under the Uninstall key to display its presence on the system, but has many MSI packages installed. Those are labeled with the SystemComponent value set to '1', so you don't see them in the control panel.
So the end result might be the same installed source, but you see different installed sizes.