Overview#

OMSyntax is used as part of specifying the syntax of an attribute. See MS-ADTS section 3.1.1.2.2.2, LDAP Representation, for information on how this object is used by the Active Directory service.

OMSyntax is a REQUIRED INTEGER value for an AttributeType within Microsoft Active Directory which he XDS/XOM syntax.

LDAP (Microsoft Active Directory) Attribute Definition#

The OMSyntax AttributeTypes is defined as:

• CN:
• OID of 1.2.840.113556.1.2.231
• NAME: OMSyntax
• DESC:
• EQUALITY:
• ORDERING:
• SYNTAX: 2.5.5.9
• LOWERBOUND:
• UPPERBOUND:
• OMSyntax: 2
• SchemaIDGUID: bf9679ed-0de6-11d0-a285-00aa003049e2
• mapiID: 33022
• SINGLE-VALUE
• NO-USER-MODIFICATION
• USAGE: OperationalAttribute
• Extended Flags:
  • X-ORIGIN:
• X-SYSTEMFLAGS FLAG_SCHEMA_BASE_OBJECT
• X-SCHEMAFLAGSEx FLAG_ATTR_IS_CRITICAL
• X-SEARCH-FLAGS FPRESERVEONDELETE
• Used as MUST in:
• Used MAY in:

Version-Specific Behavior: First implemented on Windows 2000 Server operating system.

The schemaFlagsEx attribute was added to this attribute definition in Windows Server 2008 operating system.

More Information#

There might be more information for this subject on one of the following:

• AccountExpires
• AccountNameHistory
• AllowedAttributesEffective
• Assistant
• AttributeSchema
• AttributeSecurityGUID
• AttributeSyntax
• Boolean
• ClassDisplayName
• DefaultHidingValue
• DefaultObjectCategory
• DirectReports
• ExtendedCharsAllowed
• IA5String
• Integer
• IsDefunct
• IsEphemeral
• LinkID
• MapiID
• Microsoft Active Directory Syntax
• MsDS-TrustForestTrustInfo
• MsDS-User-Account-Control-Computed
• OMObjectClass
• OMSyntax
• PosixAccount
• RdnAttId
• TokenGroups
• UnixHomeDirectory
• UsnChanged
• WhenChanged