I'm trying to install Bluetooth adapter .
Xp home sp3.

I don't see blue tooth in services.MSC.

The manufacturer told me to try this but it didn't work.
Still no Bluetooth.

Based on MS's article(http://support.microsoft.com/kb/911894), one cause could be a missing registry key for the Bluetooth Support Service. Here are the steps to add the registry key manually:
Note: XP SP3 must be installed
1. Click Start, click Run, type regedit in the Open box, and then click OK.
2. In the left pane, locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost
3. On the Edit menu, point to New, and then click Multi-String Value.
4. Type bthsvcs, and then press ENTER.
5. On the Edit menu, click Modify.
6. In the Value data box, type bthserv, and then click OK.
7. On the File menu, click Exit to quit Registry Editor.
8. Restart the computer.