http://technet.microsoft.com/en-us/sharepoint/ee517214.aspx
http://technet.microsoft.com/en-us/library/cc303420.aspx
SharePoint 2010 Cookbook: How to Migrate a SharePoint 2007 Site to SharePoint 2010 Using Database Attach
extract WSP Files from SharePoint
http://archive.msdn.microsoft.com/SPSolutionExtractor
Upgrading a Custom MOSS 2007 Solution to SharePoint Server 2010
Upgrading a custom application to SharePoint 2013
Porting a SharePoint 2007 WSPBuilder solution to SharePoint 2010 – Part 1
http://blog.muhimbi.com/2010/03/porting-sharepoint-2007-wspbuilder.html
Updating a SharePoint 2007 WSP in Visual Studio 2010
Determine upgrade approach (SharePoint Server 2010)
http://technet.microsoft.com/library/cc263447(office.14).aspx
Perform post-upgrade steps (SharePoint Server 2010)
http://technet.microsoft.com/library/cc303434(office.14).aspx
Perform a database attach upgrade to SharePoint Server 2010
http://technet.microsoft.com/library/cc303436(office.14).aspx
Dismount-SPContentDatabase wss_content PS C:\Users\Administrator> Test-SPContentDatabase -name home -webapplication htt p://dc1 PS C:\Users\Administrator> Mount-SPContentDatabase -name home -databaseserver db 2 -webapplication http://dc1 -------------------------- cd C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN\ stsadm.exe -o addsolution -filename c:\aspsolution\ASPsolution.wsp stsadm.exe -o deploysolution -name ASPsolution.wsp -url http://dc1/asp -allowgacdeployment -immediate -force iisreset -------------------------- cd C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN\ stsadm -o upgradesolution -name ASPsolution.wsp -filename C:\ASP\ASPsolution.wsp -local -allowgacdeployment iisreset --------------------------