How to deploy wsp ?

Answer:

In Command prompt, navigate to the 12-hive bin folder, then write the command to add the solution i.e.
Stsadm -o addsolution -filename filelocation

Then go to “central administration -> operations” under “global configuration” there is “solution management” click on that.

Then click on “wsp file name”, and then click on “deploy solution” for deploy it, for retrieve click on “retrieve solution”, for remove it click on “remove solution” after retrieve it.