How do I create a second instance of SQL server?

Hello Experts,

I'm testing SQL Server database mirroring.  I have two servers each with SQL Server 2005 installed as a 'default instance'.  I've got the mirroring working without the 'witness' server.  Now I need to test it with a 'witness' server.  To do this, you need another instance of SQL Server.  This can be on another server (but I haven't got another one spare) or a second instance on the same server.  I know pretty much nothing about SQL Server so my question is how do I install a second instance of SQL Server on a server that already has SQL Server installed?
LVL 10
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Install SQL Server again. Instead of choosing default instance in the installation choose named instance and type in the name you want. For example if your computer is called SQLPC and you name your instance SECONDINSTANCE you can access it like SQLPC\SECONDINSTANCE and the default can be accessed like SQLPC or if you are on that machine then (local)\SECONDINSTANCE and (local) respectively

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
DarylxAuthor Commented:
Great!  Thanks for the quick reply.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server 2005

From novice to tech pro — start learning today.