I posted regarding this issue before (http://forums.adobe.com/message/4817948), but was never able to find an answer.
Presently I am deploying Adobe Reader 10.1.5 via the MSI installer and group policy. The issue is that a user shut down her Windows 7 computer midway though the MSI installation interrupting (i.e. screwing up) the installation process. I had to delete a few registry entries and reboot the user's PC in order to re-initiate the Reader installation (something I've done in the past).
To verify that Reader was installed sucessfully, I browse to the Reader executable (AcroRd32.exe) in Program Files, double click the executable, select About Adobe from the Help menu, check the version number in the information box and see that the version number is 10.1.4 (i.e. the old version that I am upgrading from). However, when I browse to the Reader executable (AcroRd32.exe) in Program Files and and open the file properties, I see that the version is 10.1.5 (i.e. the new version that I am upgrading to).
So the Reader version listed in GUI does not match that shown in the executable property box.
This is the second time that this has happened with a Windows 7 PC. I've never experienced this sort of thing with a Windows XP PC.
Why is the version number different in the GUI? Where is the version number read in from for the GUI? The registry? Can anybody shed some light on this situation?