Here are the data structures with brief descriptions:

[detail level 12]

dcp
ExtensionFilterIteratorDecorator
IClassHunter
ClassHunterForPHP5_3
DirectoriesAutoloaderException
DirectoriesAutoloader
ClassHunterFactory
FDL
FREEDOM
version
_ARCHIVING
_DSEARCH
_EXEC
_FILE
_FORUM
_GROUP
_HELPPAGE
_IGROUP
_IGROUPUSER
_IMAGE
_IUSER
_MAIL
_MAILTEMPLATE
_MASK
_parse_lockinfo
_parse_propfind
_parse_proppatch
_PORTFOLIO
_POSTIT
_PUBLIMAIL
_REPORT
_SENTMESSAGE
_SOCIETY
_SSEARCH
_TEXT
_TIMER
_USER
_WASK
Acl
Action
ActionAttribute
ActionUsage	Verify arguments for action function
ADoc
ApiUsage
apiUsage	Verify arguments for wsh programs
ApiUsageException
Application
Authenticator
AuthenticatorManager
BasicAttribute
basicAuthenticator
ControlObject
Crontab
CVDoc
DbObj
DbObjCtrl
DbObjectList
DHTML_Calendar
digestAuthenticator
Dir
Doc
DocAttr
DocAttrLDAP
DocCollection	Class use to search documents
DocCount
DocCtrl
DocFam
DocFile
DocHisto
DocLDAP
DocLog
DocPerm
DocRead
DocRel
DocSearch
DocTimer
DocumentList
DocUtag
DocValue
DocVaultIndex
DocWait	Temporary saving
DocWaitManager
Domain
DomainAlias
DownLoad
excludeSomeFiles
Fdl_Application
Fdl_Collection
Fdl_Document
Fdl_DocumentSelection
Fdl_Family
Fdl_Mail_mime
Fdl_Mail_mimePart
Fdl_User
Fdl_Workflow
FdlTests
FieldSetAttribute
fileProvider
Form
Form1NF
Form1NF_Column
Form1NF_Reference
Form1NF_Table
FormDate
freedomProvider
Group
htmlAuthenticator
HTTP_WebDAV_Server
HTTP_WebDAV_Server_Freedom
Lang
Layout
ldapProvider
LibSystem
Log
MailAccount
MailAlias
MenuAttribute
NormalAttribute
ObjectPermission
OldQueryObj
OOoLayout
openAuthenticator
Out
Package_DocumentTests
Param
ParamDef
PDir
PDoc
PDocSearch
Permission
PFam
PHPUnit_Framework_TestDocument
PHPUnit_Framework_TestSuiteDocument
po2js
Pop
Provider
QueryDb
QueryDir
QueryGen
QueryObj
RessourcePacker
SearchDoc
Session
SessionCache
SessionConf
SessionUtils
SessionVar
Style
SubForm
Table
TableLayout
TaskRequest
TestDocument
TransformationEngine
TwoDimensionStruct
uploader
User
UsercardLdif
UsercardVcard
UserToken
VaultDiskDir
VaultDiskDirCache
VaultDiskDirStorage
VaultDiskFs
VaultDiskFsCache
VaultDiskFsStorage
VaultDiskStorage
VaultEngine
VaultFile
VGroup
WDoc
WProcess
XMLParseErrorException