Introduction to Additional Account Info
What Acctinfo.dll does for you is expose more properties in ADUC (Active Directory Users and Computers), for example lastLogon and Password Expires. Specifically, with this add-on you get an extra tab in ADUC called Additional Account Info.
What led me to discover this treasure called acctinfo.dll was research into an LDAP property called lastLogon. The reason that I have not used acctinfo.dll previously is that whenever I need to investigate such hidden Active Directory attributes, I launch ADSI Edit.
Topics for Additional Account Info
- How to add Additional Account Info Property Tab
- Download Acctinfo.dll
- Learning Points for Acctinfo.dll
- Extra properties displayed in Additional Account Info
- Summary of Acctinfo
Our mission is to add an extra tab to ADUC (Active Directory Users and Computers). Amongst the extra information on this tab is, the lastLogon time, UserAccountControl value and Bad Password Count.
All we need to display this extra information is to obtain a dynamic link-library file called acctinfo.dll, copy it to the correct folder and then register the service. Here are detailed instructions to achieve our mission:
This is how to get the Active Directory additional account info tab.
Copy acctinfo.dll to the %systemroot%\system32 folder
Register the service and dll with this command:
regsvr32 acctinfo (Similar to registering the schema snap-in)
Close, then open Active Directory Users and Computers.
Look for an extra tab called Additional Account Info.
Learning Points for Acctinfo.dll
Note 1: My information is that you need to install acctinfo on the machine where you execute the ADUC snap-in.
Note 2: In line with modern best practice, once you have registered acctinfo, there is no need to reboot your server.
Note 3: If you wish to remove the Additional Account Info tab, open a Run dialog box and then type:
regsvr32 /u acctinfo
Note 4: Acctinfo is supplied free by Microsoft.
- Password Last Set and Password Expires
- User Account Control, for example a value of 512 means enabled or 514 disabled. Also a value of 66048 (see diagram) means that the account cannot be locked out.
- Whether the account has been locked out – or not. (Locked: No)
- SID and GUID
- Last Logon, Logoff times
- Logon Count, Bad Password Count
SolarWinds have produced three Active Directory add-ons. These free utilities have been approved by Microsoft, and will help to manage your domain by:
- Seeking and zapping unwanted user accounts.
- Finding inactive computers.
- Bulk-importing new users. Give this AD utility a try, it’s free!
How to Remove Acctinfo
You can remove Acctinfo.dll by calling for Regedit. Using the command-line, or PowerShell, run this instruction:
regsvr32 /u %systemroot%\system32\acctinfo.dll
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Finally, Guy bets that if you test drive the Network Topology Mapper then you will find a device on your network that you had forgotten about, or someone else installed without you realizing!
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Acctinfo not only gives extra information about the last time a user logged on, but also ‘Bad Password count’ and the ‘UserAccountControl value’. Download and install acctinfo.dll and thus get the extra tab to see what your users have been doing.
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