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Windows XP Alt-Tab issue in RDP products

Posted on 2011-09-29
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Last Modified: 2012-05-12
Okay, this is frustrating me. I've used VNC and RDP for years, and I'm into my second year of ScreenConnect. Alt-Tab -used- to only trigger task switching on the remote end in all of these. I don't have UltraVNC anymore (it started sucking bigtime), but in both MS RDP -and- ScreenConnect, Alt-Tab triggers task switching on -both- the remote -and- local ends. Didn't used to trigger locally while focused on SC or fullscreened in RDP. Anyone know how to fix this, or even what's broken? I have a ticket in with ScreenConnect, but I'm impatient. I've tried googling alt-tab till my brains melted (zombie soufle, anyone?), no dice. WinXP Home 32bit SP3 (fully patched except this week's Tuesday patches). Any help would be hugely appreciated!
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Question by:Fairlight2cx
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by:sjklein42
ID: 36818892
For RDP, have you checked the Remote Desktop Connection settings - Local Resources tab, "Keyboard" option, to be sure it is forwarding correctly:

In the Keyboard panel, you can specify how you want the special Windows shortcut keystrokes, such as Alt-TAB, to be interpreted. As you can see the default setting only allows them to be applied to the remote system in full screen more. However, you can choose to have them only apply to the remote system or to only apply to the client system. Keep in mind that the [Windows] key operates normally in both the remote and client windows depending on which window has the focus.

http://www.win.net/optimator/WinWiz/Tips/WXPRDP2.htm
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by:Fairlight2cx
ID: 36818896
I set that exact setting after finding it documented today.  And RDP blatantly ignores the setting and triggers task switching on both sides -anyway-.  ScreenConnect just plain does not have the option...it's supposed to capture it for remote only, period.

I'm almost positive it's something about this particular WinXP box, as the same software on my laptop (same OS) does not exhibit this behaviour, and ScreenConnect has not been able to replicate the issue so far.

Neither program used to screw up this way.  I just have no idea what's changed--only that it's been a few months.
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by:sjklein42
ID: 36818943
Are you running any kind of Alt-Tab replacement software, like TaskSwitchXP?
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by:Fairlight2cx
ID: 36818960
Negative.  My running software taks really have been static, excepting adding Spotify, and I tried it with that entirely down last night.  No joy.
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by:sjklein42
ID: 36819053
Double-check that the Terminal Services service is started on the client machine.

It sounds familiar, but I'm stumped.

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by:Aaron Tomosky
ID: 36831912
I've only seen this when it's not actually fullscreen. Can you see any of your desktop peeking around the remote screen?
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by:Fairlight2cx
ID: 36890462
Nope.  Both RDP and SC are fullscreened (I'm only testing one at a time...either/or, not both at once).  
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Fairlight2cx earned 0 total points
ID: 36898385
The problem is caused by having a copy of FRAPS 3.4.6 running, even though no keys are bound to Alt-Tab.  Exiting FRAPS fixes the issue, restarting it reintroduces the problem.  This did not hsppen with older versions like 2.9.7.  I have a support ticket in to Beepa about it.

But that is definitely the culprit.  Verified under RDP and ScreenConnect.
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Author Closing Comment

by:Fairlight2cx
ID: 36984603
Found the problem myself.
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