The following is the configuration of the server:
1. Windows 2003 server
2. SQL Express 2005
3. 2GB of RAM

The server is running 24/7, I noticed that the Memory Usage of "sqlservr.exe process"
in the Task Manager reaches 1.3GB. These are my questions?

1. Is this normal?
2. Will this contribute to slow process and hanging?
3. Is there a way to reset the memory usage to normal?