Q: I do not have internet on the computer I want to install to, can I use Visual Studio Express Editions?
Yes, download an image that you can burn to a CD and install on any computer without internet. Manual installation instructions here
Q: Do I have to uninstall any previous versions of SQL Server 2005, Visual Studio 2005, and the .NET Framework 2.0?
Only if they were community technology previews (CTP) or betas. If it is the released version you do not have to uninstall. More information here
Q: Can I install multiple Express Editions on the same computer?
Yes.
Q: Can I install Express Editions with Visual Studio 6.0/2002.NET/2003.NET/2005?
Yes, they work side by side.
Q: How do I register?
Choose the Product Registration menu option from the help menu inside Express Edition application you want to register.
You do not need to register if installed from the CD images.
You do not need to register SQL Server 2005 Express Edition but you can if you want.
Q: How much does it cost?
Nothing, it is free!
Q: Can I register multiple editions?
Yes, you register all editions, multiple times if needed.
Q: I had to reinstall my computer and lost my registration key, what do I do?
Re-register, you are allowed to register one edition multiple times. You can have multiple installations at the same time like one at work and one at home.
Q: The installation crashes, what do I do?
Sometimes it helps to install the .NET 2.0 framework first. Download here
Q: I can not download, it hangs, does not start and other online installation issues!?
Try the download troubleshooting guide
Q: I get package load failures, how do I fix it?
Check you Aaron Stebner's Definitive list of workarounds for Package Load Failure errors in Visual Studio 2005
Q: This FAQ didn't help me at all and I want to ask a question, how?
A: Choose to create a new thread and ask your question. Read this knowledge base article on how to ask a question.