Explain the steps to create a .NET Assembly

Add a project from templates called “Class Library”
Optionally in property pages of this project set the output type to Class Library..

Steps to create and implement Satellite Assemblies - 

Satellite assemblies are resource assemblies specific to language/culture. Different resource files are created for different languages/cultures and then the needed one is loaded based on the user.

1. Create a new web application

2. Drag 2 label controls, a dropdownlist and a button control. Add 2 items to the drop down, en-US and fr-FR.

3. Add a new folder called resources and add 2 resource assembly files in it., e.g.: res1.resx and res1.fr-FR.resx In res1.resx, add a key “Welcome” and value as “Hello there”. In res1.fr-FR.resx, add a key called “Welcome” and value as “Bon Journe”.

4. Generate their resource files by using the resgen command for each of these resource files and keep them in the App_GlobalResources folder.

5. On button’s click even at the following code:

6. Session["language"]=dropdownlist1.SelectedItem .Text ;
Response.Redirect ("Webform2.aspx");

7. Add a label inWebform2.aspx. In page load event of Webform2.aspx.cs add the following code.

System.Resources.ResourceManager resourceManager
=ResourceManager.CreateFileBasedResourceManager("res1",Server.MapPath("Resources")+Path.DirectorySeparatorChar , null);
string getLanguage = Session["language"].ToString ();
          CultureInfo cultureInfo=new CultureInfo(getLanguage);
Label1.Text=resourceManager.GetString ("Welcome",cultureInfo);