Multiple applications hanging

[Stevo]

Applications that hang include Norton Anti-virus 2007, IE7 intermitently,
Office Professional 2000(Word only hangs- Excel, Powerpoint etc open fine

Any ideas appreciated.

Examples of error messages from error log below:

Service Control Manager Timeout (30000 milliseconds) waiting for the
dlcf_device service to connect.

Service Control Manager The dlcf_device service failed to start due to the
following error: The service did not respond to the start or control request
in a timely fashion.

DCOM DCOM got error "%1053" attempting to start the service dlcf_device with
arguments "" in order to run the server: {323CE21C-A448-40AA-B
A74-7FCF1E441060}

System Error Error code 10000050, parameter1 8b571e75, parameter2 00000000,
parameter3 bf2c834b, parameter4 00000000.

System Error Error code 1000000a, parameter1 00000007, parameter2 00000002,
parameter3 00000001, parameter4 806e4a2a.

System Error Error code 100000d1, parameter1 0000002a, parameter2 00000002,
parameter3 00000000, parameter4 f69a0352.

System Error Error code 1000008e, parameter1 c0000005, parameter2 805bfbe6,
parameter3 abb37408, parameter4 00000000.

SideBySide Syntax error in manifest or policy file "C:\Program Files\Apple
Software Update\Plugins\EXEInstallPlugi n.dll.Manifest" on line 2. The
required attribute version is missing from element assemblyIdentity.
Wednesday, 4 July 2007 SideBySide Syntax error in manifest or policy file
"C:\Program Files\Apple Software Update\Plugins\EXEInstallPlugi
n.dll.Manifest" on line 2.

SideBySide Generate Activation Context failed for C:\Program Files\Apple
Software Update\Plugins\EXEInstallPlugi n.dll.Manifest. Reference error
message: The operation completed successfully. .

SideBySide Syntax error in manifest or policy file "C:\Program Files\Apple
Software Update\Plugins\MSIInstallPlugi n.dll.Manifest" on line 2. The
required attribute version is missing from element assemblyIdentity.

SideBySide Syntax error in manifest or policy file "C:\Program Files\Apple
Software Update\Plugins\MSIInstallPlugi n.dll.Manifest" on line 2.

SideBySide Generate Activation Context failed for C:\Program Files\Apple
Software Update\Plugins\MSIInstallPlugi n.dll.Manifest. Reference error
message: The operation completed successfully. .

Service Control Manager The Application Management service terminated with
the following error: The specified module could not be found.