I have designed a site for a client.To migrate this, they want the code as a wsp file and will not accept a stp file.What is the difference and how can I convert this to a wsp file?Any ideas?

Hi, Site admin templates (*.stp files) Server admin templates (*.wsp files) A .stp (site template) file contains resources and a manifest file relevant to an individual site template, and is limited in that it only contains a site itself with lists, etc. SPS 2003 and WSS 2.0 used .stp files, and they can still be used in MOSS 2007 and WSS 3.0. They are convenient, in large part because a relatively inexperienced user can save a site to template through the UI, and create new sites from that template with no knowledge of the .stp file's contents, etc.A .wsp (solution) file similarly contains resources and a manifest file, but is more broadly used for extending MOSS 2007 and WSS 3.0 (not applicable to SPS 2003 or WSS 2.0), and is generally used for deploying Features, which can consist of site definitions, lists, web parts, custom actions, fields, etc., etc. It is much more extensible than the .stp framework, though it is also therefore more complicatedto use. Read this to know difference http://blogs.msdn.com/brianwilson/archive/2008/07/13/site-definitions-versus-site-templates-and-deciding-on-the-correct-customization-approach.aspx By using WSP u can import all list tems which is ueing in your sharepoint site Refer this article for build a wsp package http://geekswithblogs.net/evgenyblog/archive/2008/01/27/118966.aspx refer this post also http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/f6f3fa71-d473-4eb5-b52b-65b90f070c19 Thanks,