most install dates in uninstall tab just wrong

Andavari is that on a Windows 7 machine as that is what we are talking about at the moment.

XP Pro SP3.

I do love a good conspiracy theory. How about :-

Every App that is installed is registered in the registry and reported back...

That's actual my friend, some apps (not all) record in their own unique settings when they were installed and when looking for an update manually or automatically they will forward that info home and some also report how many times they've been used - statics analysis.

I can confirm that build 3.19 of ccleaner fixed the issue where install date of an app would sometimes show as the 'last accessed' date in XP

However in Windows 7 install dates ccleaner is still one day behind for every app in control panel install list.

We’ll look into this.

I can confirm that build 3.19 of ccleaner fixed the issue where install date of an app would sometimes show as the 'last accessed' date in XP

Some of them are correct on my system while some others aren't.

Although I don't use the dial-up modem anymore CCleaner states the drivers were installed on 05-27-2012, although there's nothing in Add/Remove to compare for dates since Add/Remove doesn't even show an install date for that.

Hmm, ok more drivers installations in CCleaner are showing random 2012 install dates for stuff I installed back in January 2010.

I'm not at all concerned about what CCleaner states is the install date though because this could be a no win situation for Piriform to try and overcome because when applying security updates to say Microsoft Office and Microsoft .NET Framework those install dates change to the date the security updates were applied.