KB: Read these Microsoft KBs before deploying Document Libraries with deep folders / long names

http://support.microsoft.com/kb/329919 – Cannot open a Web folder document that is located on a Microsoft SharePoint Portal Server 2003-based server

http://support.microsoft.com/default.aspx?scid=kb;EN-US;326039 – Error message when you open a Office file that has a long folder name

http://support.microsoft.com/default.aspx?scid=kb;EN-US;910365 – You receive an error message when you try to open a Web site as a Web folder in Microsoft Internet Explorer 6

http://support.microsoft.com/default.aspx?scid=kb;EN-US;894630 – You receive a "The specified file or folder name is too long" error message when you create a new folder or a new document in a document library in SharePoint Portal Server or in Windows SharePoint Services

http://support.microsoft.com/default.aspx?scid=kb;EN-US;923906 – When you try to open a folder in a Windows SharePoint Services 3.0 document library in Explorer View, the folder does not open