I guess you might be using MSDE (the free version of SQL Server)?
Web Data Administrator - SqlWebAdmin
"Web Data Admin" is Microsoft's ASP.Net free tool to help you do
simple queries in MSDE or SQL Server from a web page.
MSDE Query - Similar to Query Analyzer
This is "nagware". It keeps popping up a message telling you that you should register it. But it's not technically shareware - you don't have to register it.
UserManNET to manage SQL Server accounts in MSDE
SQL Buddy (open source in C#):
MSDE GUI - Similar to Query Analyzer (with C# source)
NOTE: Code Project also has QASharp V1.0, but this looks like it isn't as good as MSDE Buddy.
TOAD for SQL Server
Quest Software has released a SQL Server version of its highly popular Oracle tool, TOAD. It is freeware! You can see more about it at http://www.toadsoft.com/toadss.html
and download it at:
A free admin program called "DbaMgr2k"