thread error when running in debug mode

[c# newbie]

When starting a c# asp.net web site in visual studio 2003, the following
message appears in the debugger window:



The thread 0x7bc has exited with code 0 (0x0).

The program '[2516] IEXPLORE.EXE: Script program' has exited with code 0
(0x0).

The program '[1896] aspnet_wp.exe: DefaultDomain' has exited with code 0
(0x0).

The program '[1896] aspnet_wp.exe:
/LM/w3svc/1/root/marlookup-42-127136893100993750' has exited with code 0
(0x0).



What does this mean ?