We have got a Sharepoint project at school, we need to include some webparts like weather on a site; the point is that for importing webparts SP asks me for .dwp or .webpart files while I can only find .wsp . Where should I look for .webpart files ? Or how to import .wsp ? Thanks a lot
I always use the sharepoint management shell. Move your .wsp file to an easy location. Open your management shell as an administrator and use this command:
add-spsolution c:\yourwsp.wsp
Open sharepoint central administration and manage farm solutions. Deploy your webpart (System Settings - > Manage Farm Solutions) and then activate your webparts feature (Go to your desired web application Site Actions - > Site Settings - > Site Collection Features).
Edit: When you are re-deploying a .wsp, make sure you go to your farm solutions and retract / remove your .wsp first.