Hi coralreef3,
Thank you for your post. That is real good question
And I'm afraid I can't find a proper answer.
You can check the version in about dialog, through left-top application icon.
But that will be a version of the certain Trimmer.exe binaries.
The versions we publish at AVI trimmer page, is an intallation versions, as it ships some components except Trimmer.exe binaries, that also can be updated to fix some bug.
http://www.solveigmm.com/?VersionHistory&id=AVITrimmer
1.6.912.18
1.6.911.12
1.6.911.9
So the main version to decide update your software is of course installation version. But as far as I know this version is only shown while installing, and it is the installation file name also incorporate it - like "SolveigMM AVI Trimmer 1.6.911.18.exe"
Well, probably we should do two things to our products:
1. Show at dialogs both binaries and installation version
2. Make an ability to check update