Returns the size of a folder, including all files in all subfolders, and the file count for paths that don't contain folders longer than 260 characters, this is the old implementation that was used in ShellBrowser.Net up to and including version 4.0.0.3

path must include a trailing backslash

public static long GetFolderSize260(
	string p_Path,
	out int p_FileCount,
	out int p_FolderCount
)

Public Shared Function GetFolderSize260 ( _
	p_Path As String, _
	<OutAttribute> ByRef p_FileCount As Integer, _
	<OutAttribute> ByRef p_FolderCount As Integer _
) As Long

public:
static long long GetFolderSize260(
	String^ p_Path, 
	[OutAttribute] int% p_FileCount, 
	[OutAttribute] int% p_FolderCount
)