Hi,

Both projects can have their own version of EO.Web.dll in the project's bin folder and they will still compile and function fine. However you can only install one system-wide version of EO.Web Controls installed, only that version can have design time support. A typical scenario is:

1. You have project A using 2007.2;
2. You wish to install 2008, so you uninstall 2007.2 (this is required);
3. Project A will still compile and run because it has kept a copy of the old EO.Web.dll in its bin folder. However you will no longer be able to access its design time features, such as Menu Builder, etc;
4. You install 2008 and create a new project B using 2008;
5. Everything, including design time features work fine for project B because it uses the current version;

Once you installed 2008, you can easily update your project A to use 2008 by deleting EO.Web.dll from the Reference section in your solution explorer, then add a reference to the new EO.Web.dll. You may need to restart VS after you updated the reference.

Hope this helps.

Thanks