Windows NT Global Groups Are Limited to 20 Character Names (131417)
The information in this article applies to:
- Microsoft Windows NT Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Workstation 3.51
- Microsoft Windows NT Workstation 4.0
- Microsoft Windows NT Server 3.5
- Microsoft Windows NT Server 3.51
- Microsoft Windows NT Server 4.0
- Microsoft LAN Manager 2.2
This article was previously published under Q131417 SYMPTOMS
Custom applications that creates Windows NT Global Groups with names longer
than 20 characters appear to work correctly. However, when you attempt to
view, modify, or delete these global groups with User Manager for Domains,
the following message appears:
The following error occurred accessing the properties of the group
<Large Group Name>:
The filename, directory name, or volume label syntax is incorrect.
The group properties cannot be edited or viewed at this time.
CAUSE
Windows NT 3.1, 3.5, 3.51, and 4.0 do not support Windows NT global groups with
names longer than 20 characters. This limit is imposed to allow for
interoperability with OS/2 LAN Manager, DOS LAN Manager, IBM LAN Server,
and Windows for Workgroups.
RESOLUTION
Limit the length of global group names to 20 characters (as defined by the
constant LM20_GNLEN in LMCONS.H). Local groups are not limited to 20
characters so they may be used where large group names are required.
The following functions should use global group names that are no greater
than LM20_GNLEN bytes in length.
NetGroupAdd
NetGroupAddUser
NetGroupEnum
NetGroupGetInfo
NetGroupSetInfo
NetGroupDel
NetGroupDelUser
NetGroupGetUsers
NetGroupSetUsers
NetUserSetGroups
There is no function to rename a global group name.
Other APIs that manipulate global groups should not be used with
global groups that have names exceeding 20 characters as the results are
unpredictable.
| Modification Type: | Major | Last Reviewed: | 12/5/2003 |
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| Keywords: | kbAPI kbnetwork kbui KB131417 |
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