Side by Side stacks

Topics: Bluetooth - Microsoft, Bluetooth - Widcomm/Broadcom
Jan 16, 2013 at 8:22 PM
Edited Jan 16, 2013 at 9:08 PM

My computer(Windows 7 64bit) has MSFT stack (Device Manager->Bluetooth Radios - has two entries

1. Microsoft Bluetooth Enumerator and
2. Name of whichever dongle I plugged in. I am trying a couple of dongles.. One BroadComm manufactured, One 'Generic'-no idea what it means )


A - Why are there two entries 1. and 2.? Does that mean I really have two radios? What is 1.? When I remove the dongle, "Bluetooth Radios" disappears altogether. So 1. is like the core that needs a vent(dongle)?

B - One of the devices I need to communicate, has in its instructions to check if bt driver by Broadcomm is already installed.  Then it asks to check if bt device manufacturer is Broadcomm.  If not, then they ask to install what seems like widcomm sw from their CD. So sounds like they are saying my bt stack needs to be Broadcomm's(Widcomm stack) right? But Why do they care about 'manufacturer' though?

C - I tried to download and install Broadcomm's bt sw ( I am assuming this is their 'stack'?), everything seems to install fine but all the new shortcuts say "Bluetooth Problem Report". Which means it had issues. I tried couple of times to uninstall and reinstall, but still the same issue. So does that mean, I can not install broadcomm stack on windows 7, if I already have msft stack? I tried uninstall and reinstall with 1. disabled. Still no luck.

D - Is it easy/safe/ok to uninstall existing msft stack, so I can test broadcomm's for a while? How do I uninstall msft stack, where can I get that stack to reinstall it later?

Your help much appreciated.



Is what you mentioned here( related? So does that mean, there is no way to install a full widcomm stack on windows 7 if we already have msft stack?


Another related link here ( which is 2 years old and says widcomm stack on windows 7 not possible. Can someone please confirm?

Jan 20, 2013 at 6:55 PM
Edited Jan 20, 2013 at 6:56 PM

What's your aim?

Some answers:

A) No, that is just one radio -- one radio is all that that stack supports. The presence of the Enumerator thing is apparently intrinsic to the driver model in Windows -- presumably one 'device' to handle finding new instances and then one for each instance.

B) Does not NEED to be Widcomm. They obviously think Widcomm is 'better' and so recommend it.

C) I think I've managed in the past...

D) Yup, tis safe to use other stacks. If multiple stack software is installed then generally what one can do is to go to Device Manager and do Update Driver and select the respective driver for the stack and then the stack magically comes alive. That's the case for MSFT. See e.g.