Search your hard disk for the location of sqlbrowser.exe
Looking it up on Google indicates that it is a process which belongs to the Microsoft SQL Server,
provides browsing services and should not be terminated unless suspected to be causing problems.
It should be located in a subfolder of "C:\Program Files.
"Known file sizes on Windows XP are 242,544 bytes (76% of all occurrence), 239,320 bytes, 240,416 bytes,
126,680 bytes, 151,768 bytes, 242,712 bytes.
The file has a digital Signature.
sqlbrowser.exe is not a Windows system file.
The process uses ports to connect to LAN or Internet".
Check the properties of the file you find.
I read that malware can camouflage itself as sqlbrowser.exe, particularly if located
in C:\Windows, or C:\Windows\System32 folder.
Therefore it would not hurt to run:
to see if they pick up any problems with the file.
However, perhaps others familiar with Microsoft SQL Server can comment on
the Task Manager aspect and whether or not it would be prudent
to disable it in services, if you don't want it running.