AEN007 Posted December 1, 2009 Share Posted December 1, 2009 1December2009Greetings.Here's a fun one.The z-order on my XP Home laptop stopped functioning properly this week.Minimizing non "always on top" windowed apps/utils no longersends the app/util to the bottom of the z-order.Anyone ever heard of this one before?Anyone know & would tell me what controls the z-order?Does a registry entry control the z-order?Any helpful replies/insights appreciated.Thank you.Regards,AENÆ Link to comment Share on other sites More sharing options...
cluberti Posted December 1, 2009 Share Posted December 1, 2009 There's not a "controller" for z-order at all, and only applications that explicitly set themselves as background (or foreground) and keep checking can actually (mostly) guarantee that they'll keep their place in the z-order. There was a question about this on this forum about a year ago, I believe, and it ended up being a logitech mouse driver that caused it, so for what it's worth, anything that can interact with the desktop and the user's desktop heap can cause the issue.Has anything changed or been updated on your box on or around the time you noticed this was occurring, and does it also happen in safe mode? Link to comment Share on other sites More sharing options...
AEN007 Posted December 1, 2009 Author Share Posted December 1, 2009 1December2009Greetings.Thanks for the/a reply.I'm not sure I understand your reply in the context of the followinghttp://blogs.msdn.com/oldnewthing/archive/...0/20/55367.aspxThe above link implies XP controls the z-order.I have not yet tried Alt-Tab in safe mode.Alt-Esc still works properly.Things are always changing on my three XP laptops.I am constantly updating freeware (mostly portable / install free);tweaking the XP StartMenu, registry & other settings andrecently tweaking Ad Hoc LAN NICs. In that I have three XP laptopsI have somewhat of a control group when making changes.Laptop G is my XPHome laptop & now has the z-order problem.I have had no z-order problems on laptop T with XPP.I had the same z-order problem on laptop i with XPP, butexperienced that turning on Personalized Menus in the Classic StartMenu& rebooting returned the normal z-order. I recently decided to turn offPersonalized Menus on all three laptops. The "fix" that worked on ihas not worked on G and now no longer works on i but is no longer necessary either.I have been able to reboot with Personalized Menus turned off & the z-order remains working.What things could be interacting with the DeskTop?What could it mean if the z-order is OK in safe mode?I'll try the Safe Mode tomorrow probably.Any helpful replies/insights appreciated.Thank you.Regards,AENÆp.s.: I can never logout of this forum without closing whatever browser.I logout & leave. Then maybe I come back later to check for repliesand the forum automatically logs me in even though I do not & never checkremember me ... Link to comment Share on other sites More sharing options...
cluberti Posted December 1, 2009 Share Posted December 1, 2009 The above link implies XP controls the z-order.Yes, the shell controls the z-order, but "control" is a bad word. There's no guarantee that z-order will be the same forward and back when applications are minimized, maximized, brought to foreground/sent to background, etc, unless the application itself makes sure of this in it's own code (and there are very few apps that I know of that do this). It's true that it usually works as expected, but there's no guarantee that it will, and if it's not working as expected it's highly likely some software on the machine is interfering.What things could be interacting with the DeskTop?What could it mean if the z-order is OK in safe mode?Anything that interacts with the shell, either via a shell extension or a load hook in a .dll can cause it. You can see and enable/disable some (most) of these by using autoruns and shellexview. Link to comment Share on other sites More sharing options...
AEN007 Posted December 3, 2009 Author Share Posted December 3, 2009 3December2009Greetings.Thanks for the reply.XP managed the z-order properly in Safe Mode, butdid not after I rebooted normal XP; however,I then (seem to have) subsequently found a solution.At the moment XP is (once again) properly managingthe z-order on each laptop with Personalized Menus disabled.I still need/want to find a helpful network PING problem solver.Any suggestions?Thank you.Regards,AENAE Link to comment Share on other sites More sharing options...
cluberti Posted December 3, 2009 Share Posted December 3, 2009 My suggestion would be to post that request in the network and internet section, you'll probably get better help there for that. Link to comment Share on other sites More sharing options...
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