window xp debug symbols don't load



I am using Visual Studio 6.0 SP6, my environment is
-Version 5.1.2600 Service Pack 1 Build 2600
-Hardware Abstraction Layer Version = "5.1.2600.1106 (xpsp1.020828-1920)"
I load xpsp1sym_x86.exe then install it in c:\windows\symbols\dll.

When I debug program the VS6 doesn't load symbols. It shown
Loaded 'C:\WINDOWS\system32\ntdll.dll', no matching symbolic information
found.
Loaded 'C:\WINDOWS\system32\kernel32.dll', no matching symbolic information
found.
Loaded 'C:\WINDOWS\system32\advapi32.dll', no matching symbolic information
found.
Loaded 'C:\WINDOWS\system32\rpcrt4.dll', no matching symbolic information
found.
Loaded 'C:\WINDOWS\system32\user32.dll', no matching symbolic information
found.
....

How can I correct this problem?
Do I have to set some options in VS6 in order to let it know where the
symbols are?
.


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