I want to place a custom webpart on the main page of my sharepoint portal that will look through a specific list. I want also to look for the information in the specific fields (like name, surname, phone number etc.). In MOSS 2007 we have Microsoft.Office.Server.Search namespace but is it possible to write this kind of webpart in WSS?
In WSS you have two options:
1) You can execute a CAML query against the specific list using SPList.GetItems
2) Use KeywordQuery or FullTextSqlQuery from the Microsoft.SharePoint.Search.Query namespace