Packaging and Deploying Sharepoint Web Parts
Just another webmemory
SharePoint Products and Technologies Tool: WPPackager for Packaging and Deploying Web Parts
http://www.microsoft.com/downloads/details.aspx?FamilyID=0fda5912-c136-4b44-911a-011adfcc66e3&DisplayLang=en
Generates an installer for Sharepoint Web Parts