It’s easy enough to create a script that automates the whole process, for example:

== productlist.cmd ==
@echo off
rem Next command is only needed first time
if not exist C:\MyList mkdir C:\MyList

wmic /output:C:\MyList\list.txt product get name,version
== cut here ==

With a bit of work, the script can be enhanced to include a time-stamp in the file name, so one can keep track of changes:

== productlist.cmd ==
@echo off
rem Next command is only needed first time
if not exist C:\MyList mkdir C:\MyList

rem capture current time
set DAY=%DATE%
set NOW=%TIME%
rem replace leading space with 0
set NOW=%NOW: =0%

rem extract date parts
set YYYY=%DAY:~-4%
set MM=%DAY:~3,2%
set DD=%DAY:~0,2%

rem extract time parts
set HH=%NOW:~0,2%
set MM=%NOW:~3,2%
set SS=%NOW:~6,2%

rem Combine parts to make timestamp:
set STAMP=%YYYY%%MM%%DD%-%HH%%MM%%SS%

wmic /output:C:\MyList\list_%STAMP%.txt product get name,version
== cut here ==

[This works on XP. I've not tried it on Vista or Windows7.]

In many cases, just the date will be enough, in which case just omit the setup and use of NOW, HH, MM and SS.

I get it after I enter the line
/output:C:\MyList\list.txt product get name,version

Doug

File List Maker 1.0
http://www.softpedia.com/get/System/File-Management/File-List-Maker.shtml