Deploying web user control (vs2005) in sharepoint

Hi,
I'm trying to build some web user control in vs2005 and deploy them in SharePoint environment to be used in web parts.
I do not undestand (or I miss) what do I need to deploy - After build and deploy the project for testing I found only the .ascx file and the .vb file, I'm not sure which one is the dll from the bin folder, and how can I change that name. If anybody had used web user controls in .net 2.0 in sharepoint please explain how you did it.
Thank you