Faulting application svchost.exe

OS Version : Win Server STD 2003 R2 SP2

Event Type: Error
Event Source: Application Error
Event Category: (100)
Event ID: 1000
Date: 3/12/2009
Time: 5:17:52 PM
User: N/A
Computer: INCBAC01P
Description:
Faulting application svchost.exe, version 5.2.3790.3959, faulting module shell32.dll, version 6.0.3790.4184, fault address 0x0014e84e.

After this error occurs, all the shared folders in the server are no more shared. The DFS goes offline.

We restarted the server and for a while everything works fine, then goes back into the same loop.

Kindly post some suggestions/Fixes for this problem.