How can i create a full webpart , that i can import in sharepoint 2007.
closed as unclear what you're asking by Robert Lindgren♦ Jan 7 at 9:26
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What do you require this web part to do?
You can create Data View Web Parts in SharePoint Designer 2007, which you can "Export" via the Web Interface. This produces a .webpart file which you can upload into the Site Web Part Gallery.
If you require more complex functionality you will need to produce a .NET assembly which will need to be deployed by a server administrator.
Whichever method you choose is dependant on the business requirement for your web part.