When i try to download API from Nokia website it returns 403 error: here is the download link : http://www.developer.nokia.com/Resources/Tools_and_downloads/Other/PC_Connectivity_API/
Please suggest me another download source or mail me. m.qayyum at live.com
When you were trying, may be Nokia server was very busy. Now anyone can download the APIs once they sign in with the Nokia A/c.
If you still face the above mentioned problem, please download CCleaner application and run it. Then try downloading the APIs.