Search - spsearch.asmx
Lists - Lists.asmx
List Data Retrieval - DspSts.asmx
People - People.asmx
Permissions - Permissions.asmx
spsearch service and methods
The admin web service for "Central Administration" is located in IIS virtual directory "_vti_adm" which physically maps to the folder "%Program Files%\Common Files\Microsoft Shared\web server extensions\12\ADMISAPI."
Each one of these services consist of a *.wsdl.aspx file and a *.disco file too besides .asmx files for the service WSDL (Web Services Description Language), and the service discovery implementation.
The URL for the Admin.asmx web service:
The URL for all other services is: