Windows 7 - Bluetooth Dongle Frustration

i recently bought a bluetooth dongle from a local market.
the bluetooth dongle is Made In China.(No Company!)
and written on the back cover is .

..v2.0 compliant..
..OS.98,98se,me,2000,XP,Vista,Windows7..
..symbol rate 3Mbps..
..supports Voice Data..

It works fine on a PC with WinXP/32-bit i am not able to use it in my Windows 7/ 64 Bit.
It setects the device at random USB ports and once the drivers were installed correctly but the Bluetooth Peripheral Device was not installed.
Once it also added my Mobile Phone through Bluetooth but file transfer was happening. Now, it wont detect the device at some USB ports and just installs it as a CSR bluettoth device..
It does not detect my any Bluetooth Device.

Please Help!
or my 100 rs goes to drain!

Not all Bluetooth's are compatible with Win 7.
Some (most) of the cheap no-name brand generic devices are total complete garbage.
Save yourself the hassle spend a little more and buy name branded stuff.
Make sure it is Win 7 compatible.

it ios compatible with windows 7 :"(

Well any company can advertise what they want, doesn't always make it true.
If they got it working in any one fashion once on a win 7 system, they can put it on the package.
This is why I say stick with name branding. More than likely, name branded stuff will have done far better testing.