Event ID's: 1 and 26 Event Source: ISService - Does anyone know how to correct this?

[Frank Browning]

Event Type: Information
Event Source: ISService
Event Category: None
Event ID: 26
Date: 02/27/2006
Time: 08:34:17 PM
User: NT AUTHORITY\SYSTEM
Computer: P432-WINXPP-DRD
Description:
The description for Event ID ( 26 ) in Source ( ISService ) cannot be found.
The local computer may not have the necessary registry information or
message DLL files to display messages from a remote computer. You may be
able to use the /AUXSOURCE= flag to retrieve this description; see Help and
Support for details. The following information is part of the event: The
event log file is corrupt..

Event Type: Information
Event Source: ISService
Event Category: None
Event ID: 1
Date: 02/27/2006
Time: 08:34:19 PM
User: NT AUTHORITY\SYSTEM
Computer: P432-WINXPP-DRD
Description:
The description for Event ID ( 1 ) in Source ( ISService ) cannot be found.
The local computer may not have the necessary registry information or
message DLL files to display messages from a remote computer. You may be
able to use the /AUXSOURCE= flag to retrieve this description; see Help and
Support for details. The following information is part of the event: The
event log file is corrupt.