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Thread ID: 102161 2009-08-09 06:17:00 COM port identification johcar (6283) Press F1
Post ID Timestamp Content User
799695 2009-08-09 06:17:00 Vista. I have HotSync installed for my Treo which normally uses COM4 to communicate with the phone via Bluetooth.

Something has disturbed this setting recently and now whenever I boot up, some device or program has already reserved this port so HotSync can't use it.

How do I identify the offending program or device (so I potentially change the setting for that program/device)?
johcar (6283)
799696 2009-08-09 06:54:00 You should be able to see in device manager.

Run>devmgtmt.msc
Blam (54)
799697 2009-08-09 09:36:00 Blam - that MSC doesn't exist on my machine.

But if I open Device Manager from the Control Panel, I don't specifically see a list of ports and the applications/devices that are using them...
johcar (6283)
799698 2009-08-09 09:38:00 Sorry. Should be devmgmt.msc

If you expand "Ports" you should be able to the device with the COM port used next to it.
Blam (54)
799699 2009-08-09 09:56:00 Cheers - I don't have a "Ports" item in the list - is it known as something else?

Can't see it in any of the alternate views either...
johcar (6283)
799700 2009-08-09 10:07:00 Thats weird. Must be a W7 feature or something, as I have it...

www.imagef1.net.nz

Hidden Possibly?

From an elevated command prompt, type set
devmgr_show_nonpresent_devices=1, press enter, then type start
devmgmt.msc and press enter.

Then show hidden devices under the View menu

Blam
Blam (54)
799701 2009-08-09 10:18:00 Right mouse on the top entry in device manager / scan for hardware changes. Sounds like the BT either isnt working or enabled Speedy Gonzales (78)
799702 2009-08-09 10:50:00 I think you're right Speedy - I think there's something screwy with the Bluetooth.

IIRC I had to set up a Virtual COM port when I first got the machine just so I could use HotSync...

Recently installed a Bluetooth headset (Avantalk) and I think things went west from that point (had problems connecting with the headset and people couldn't hear me through the mic). I have removed the Avantalk device, but it hasn't come right...
johcar (6283)
799703 2009-08-09 10:52:00 Blam - when I Unhide, all I get in addition to the normal list is a list on Non Plug and Play devices johcar (6283)
799704 2009-08-09 10:53:00 BTW - Bluetooth is working - I can connect to the phone OK, I just can't use COM4 to sync... johcar (6283)
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