Hi,
These Express Edition pacakge is for 30 days only Really quite
short to familiarize and enjoy using them. When this 30 day trial
starts, the day you install them or the day you register Am I right
the 30 day starts after you install them for those who have no internet
access
den2005

The 30 day trial begins when??
Manuel_0001
You'll only have to pay to get the thing after november 2006 (iow, the download option will then be removed and the product available on CD only). If you get the CD image now you can AFAIK install it basically forever (as you're essentially getting the same CD that you can buy in stores even now, apart from the artwork printed on it).
Audalio
There is no time limit on the Express products and they will not expire, but you will have to pay for them after Nov 2006. But you never know by that time we might be able to try the beta of the next release :).
Here is a link to the Visual Studio Product line that shows the different functions that are included and or not included.
Visual Studio 2005 Product Line Overview
Here are some small links where you can get more information on the express products.
Neer
These are not trial versions except insofar as some of the more advanced features from the full product are missing.