Microsoft has released the April 2009 refresh (v1.5) of the downloadable version (CHM files) of the Windows SharePoint Services 3.0 and Office SharePoint Server 2007 SDKs.
- WSS 3.0 SDK (online)
- WSS 3.0 SDK (downloadable CHM v1.5)
- Office SharePoint Server 2007 SDK (online)
- Office SharePoint Server 2007 SDK (downloadable CHM v1.5)