Simple steps to add a ".dll" file into the Global Assembly Cache in c#

Step 1 : In your project "Add reference" to the .dll file you want to install in GAC

Step 2 : Form the Refrences; Right click on the particular .dll file and take properties

Step 3 : Change the property "Copy Local" to "True"

Step 4 : Build and deploy using wspBuilder ; Done

Step 5 : For verification just check in manifest file whether the path exists or not and also in "C:\Windows\assembly".