It happens almost always during WinXP SP2 loading (when Welcome screen is shown) 
Here is callstack for VMware team:
kd> kv L 100
ChildEBP RetAddr Args to Child
f63a5d50 8054026d 00000001 00c1fd00 000000d1 nt!RtlpBreakWithStatusInstruction (FPO: )
f63a5d50 0040652c 00000001 00c1fd00 000000d1 nt!KeUpdateSystemTime+0x165 (FPO: TrapFrame @ f63a5d64)
WARNING: Stack unwind information not available. Following frames may be wrong.
00c1fe28 004064c8 00c1fe68 00c1fe80 00410a34 VMwareService+0x652c
00c1fe34 00410a34 00c1fe68 0032db98 00324e10 VMwareService+0x64c8
00c1fe80 00407957 0032e628 00c1fe9c 00c1fe98 VMwareService+0x10a34
00c1fea0 00407ae7 00324e10 0032db98 00000016 VMwareService+0x7957
00c1fed8 00407c97 0032db98 00000016 00000000 VMwareService+0x7ae7
00c1ff00 00406f32 00000000 00000000 0041433c VMwareService+0x7c97
00c1ff24 00407df6 00323b60 0032d938 00000000 VMwareService+0x6f32
00c1ff3c 00402073 00324e80 00c1ff70 00000001 VMwareService+0x7df6
00c1ff80 00402d2a 00000000 00144fd0 00144fd0 VMwareService+0x2073
00c1ffa0 77deb48b 00000001 00144fd8 0012e828 VMwareService+0x2d2a
00c1ffb4 7c80b50b 00144fd0 00000000 0012e828 ADVAPI32!ScSvcctrlThreadA+0x12 (FPO: )
00c1ffec 00000000 77deb479 00144fd0 00000000 kernel32!BaseThreadStart+0x37 (FPO: )
kd> lmvm VMwareService
start end module name
00400000 00437000 VMwareService C (no symbols)
Loaded symbol image file: VMwareService.exe
Image path: C:\Program Files\VMware\VMware Tools\VMwareService.exe
Image name: VMwareService.exe
Timestamp: Fri Aug 04 18:56:07 2006 (44D37C27)
CheckSum: 00000000
ImageSize: 00037000
File version: 3.1.0.29772
Product version: 3.1.0.29772
File flags: 0 (Mask 3F)
File OS: 40004 NT Win32
File type: 1.0 App
File date: 00000000.00000000
Translations: 0409.04b0
CompanyName: VMware, Inc.
ProductName: VMware Tools Service
InternalName: VMwareService
OriginalFilename: VMwareService.exe
ProductVersion: 5.5.2 build-29772
FileVersion: 5.5.2 build-29772
FileDescription: VMware Tools Service
LegalCopyright: Copyright © 1998-2006 VMware, Inc.
Comments: VMware NT service file
