Could not open key in registry, error = 5 Unable to determine build of browser master: 5

[Helob]

I have a Home Network with 2 Desktop PCs using a ADSL Router and ADSL
connection. No problem connecting to the Internet and sharing of
folders/files. My network places on both shown all the shared
documents/Files/folders.
However the browstat status on Computer B has a message " Could not
openkey in registry error=5 Unable to determine build browser master:
5......"
ipconfig & browstat status are shown below for both computers.
Qustions:
1. Why the error msg in Computer B? Should I be concerned?
2. What should I do to correct the problem?

Computer A:
NameIII600MHz
O/S: Windows XP Pro SP2
ipconfig:
Windows IP Configuration
Host Name . . . . . . . . . . . . : PIII600Hz
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : D-Link DFE-538TX 10/100
Adapter
Physical Address. . . . . . . . . : 00-50-BA-BE-20-5C
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
browstat status:
Status for domain HOME on transport
\Device\NetBT_Tcpip_{69B09EC9-78DA-4499-8837-0C616E4D5DD4}
Browsing is active on domain.
Master browser name is: PIII600HZ
Could not open key in registry, error = 5 Unable to determine
build of browser master: 5
\\\\PIII600HZ . Version:05.01 Flags: 51203 NT POTENTIAL
MASTER
1 backup servers retrieved from master PIII600HZ
\\PIII600HZ
There are 2 servers in domain HOME on transport
\Device\NetBT_Tcpip_{69B09EC9-78DA-4499-8837-0C616E4D5DD4}
There are 1 domains in domain HOME on transport
\Device\NetBT_Tcpip_{69B09EC9-78DA-4499-8837-0C616E4D5DD4}

Computer B:
NameIV30GHz
OS:Windows XP Pro SP2
ipconfig:
Windows IP Configuration
Host Name . . . . . . . . . . . . : PIV30GHz
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Marvell Yukon
88E8001/8003/8010 PCI Gigabit Ethernet Controller
Physical Address. . . . . . . . . : 00-0E-A6-CA-6B-61
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.3
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
Browstat Status:
Status for domain HOME on transport
\Device\NetBT_Tcpip_{69B09EC9-78DA-4499-8837-0C616E4D5DD4}
Browsing is active on domain.
Master browser name is: PIII600HZ
Could not open key in registry, error = 5 Unable to determine
build of browser master: 5
\\\\PIII600HZ . Version:05.01 Flags: 51203 NT POTENTIAL
MASTER
1 backup servers retrieved from master PIII600HZ
\\PIII600HZ
There are 2 servers in domain HOME on transport
\Device\NetBT_Tcpip_{69B09EC9-78DA-4499-8837-0C616E4D5DD4}
There are 1 domains in domain HOME on transport
\Device\NetBT_Tcpip_{69B09EC9-78DA-4499-8837-0C616E4D5DD4}


Thanks