Important This article contains information about modifying the registry.
Before you modify the registry, make sure to back it up and make sure that you
understand how to restore the registry if a problem occurs. For information
about how to back up, restore, and edit the registry, click the following
article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
MORE INFORMATION
Warning If you use Registry Editor incorrectly, you may cause serious
problems that may require you to reinstall your operating system. Microsoft
cannot guarantee that you can solve problems that result from using Registry
Editor incorrectly. Use Registry Editor at your own
risk.
In Microsoft Windows 2000, ADSI is a system
component. Because of Windows File Protection, ADSI cannot be installed over or
deleted.
In Microsoft Windows 95, Microsoft Windows 98, and Microsoft
Windows NT 4.0, ADSI is a separately installed component.
The Active
Directory Client Extensions (DSClient) is the replacement for ADSI 2.x. There
are two versions of the DSClient:
- One for computers that are running Windows 95 and Windows
98
- One for Windows NT Server and workstation
Because there are many versions of ADSI, you may want to
determine the version that is currently installed on a particular computer.
This information can be derived by using the following methods:
- By examining the registry.
- By reviewing the version numbers of certain files in the
file system.
Examine the registry
Recent versions of ADSI install the following registry key that
contains the current version number:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{E92B03AB-B707-11d2-9CBD-0000F87A369E}
The following table relates ADSI versions with the values that may
be found in this registry key:
Version Value
---------------- --------
Earlier than 2.5 n/a
2.5 2,5,00,0
Windows 2000 5,0,00,0
DSClient for 9x 5,0,00,0
DSClient for NT This registry value will not be created or updated.
Versions that are earlier than ADSI 2.5 do not have this registry
key. If this key is not present, look for the following
key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ADsIf
the previous key is present, ADSI 2.0 is installed. If this key is not present,
look then for the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ADs
If this key is present, ADSI is installed. If this key is not
present, you may have a incorrect installation or no ADSI installation at all.
Examine the
file system
ADSI installs several DLLs and a type library into the system
root folder of the computer. On a Windows NT-based computer or a Windows
2000-based computer, this folder is typically the \Winnt\System32 folder. On a
Windows 95-based computer or a Windows 98-based computer, the folder is the
\Windows\System folder.
The following tables match ADSI files
together with their corresponding version:
|
| ActiveDs.dll | 4.1.100.1 | 4.1.258.1 |
| ActiveDs.tlb | no version listed | 4.1.258.1 |
| Adsldp.dll | 4.1.100.1 | 4.1.258.1 |
| Adsldpc.dll | 4.1.100.1 | 4.1.258.1 |
| Adsmsext.dll | DLL not present | 4.1.258.1 |
| Adsnds.dll | 4.1.100.1 | 4.1.258.1 |
| Adsnt.dll | 4.1.100.1 | 4.1.258.1 |
| Adsnw.dll | 4.1.100.1 | 4.1.258.1 |
|
| ActiveDs.dll | 5.0.2172.1 | 5.0.2172.1 | 5.0.2195.2649 |
| ActiveDs.tlb | 5.0.2143.1 | 5.0.2143.1 | 5.0.2195.2778 |
| Adsldp.dll | 5.0.2172.1 | 5.0.2172.1 | 5.0.2195.2649 |
| Adsldpc.dll | 5.0.2172.1 | 5.0.2172.1 | 5.0.2195.2649 |
| Adsmsext.dll | 5.0.2172.1 | 5.0.2172.1 | 5.0.2195.2649 |
| Adsnds.dll | 5.0.2143.1 | 5.0.2143.1 | DLL
not present |
| Adsnt.dll | 5.0.2191.1 | 5.0.2191.1 | 5.0.2195.2649 |
| Adsnw.dll | 5.0.2143.1 | 5.0.2143.1 | DLL
not present |
Notes- An ADSI installation also updates the Wldap32.dll file and
the Nwapi32.dll file. However, libraries are also updated by service packs and
other Microsoft applications.
- When you upgrade an earlier version of ADSI with the
DSClient for NT, the DLLs that are not present in the DSClient for NT
installation are not overwritten.
ADSI version 2.0 shipped through several vehicles. ActiveDs.dll
version numbers range from 4.1.100.1 that is the earliest release that was
available on the Web, through 4.1.172.1 that is the release in the Microsoft
Exchange BackOffice Resource Kit.
Beta versions of ADSI 2.5 were also
available from the Web before the official release of ADSI 2.5. The version
numbers for ADSI 2.5 are in the syntax 4.1.25
X.1, where
X has the value 0 (zero) in the initial Beta release
up through a value of 8 for the final release build. You must upgrade
prerelease versions of ADSI 2.5 to the release build.
REFERENCES
For more information about ADSI, visit the following
Microsoft Web site:
For more information, click the following
article number to view the article in the Microsoft Knowledge Base:
223048
FIX: Using ADO with ADSI returns "Error 800a01ad (429)"
216709 ADSI 2.0, 2.5, and MDAC 2.1 compatibility issues
251287 Error message: Incorrect INF file syntax in section "CheckForPrevVer"
288358 How to install the Active Directory client extension