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    <p>A first step would be to check out the article series <a href="http://www.windowsitpro.com/home/search.aspx?query=An%20ADSI%20Primer" rel="nofollow">An ADSI primer</a> on Windows IT Pro. It gives a fairly good overview of the basics of ADSI and the <code>IADs</code> interfaces and how to use them (from VBScript, I believe).</p> <p>A second step in Delphi would be to import the <code>Active_Ds</code> type library - this should generate an <code>ActiveDs_TLB.pas</code> file that contains the basic types, interfaces, methods to deal with Active Directory from a native language, using ADSI.</p> <p>To access the native functions, you need to use a so called function import for each of the functions you want - here the code for just one - <code>ADsGetObject</code>:</p> <pre><code>type TADsGetObject = function(aPathName: PWideChar; const aRIID: TGUID; out aObject): HResult; safecall; var ADsGetObject : TADsGetObject = nil; initialization hActiveDS := LoadLibrary(PChar('ActiveDS.dll')); // don't localize if (hActiveDS = 0) then raise Exception.Create(rc_CannotLoadActiveDS); LoadProcAddress(hActiveDS, 'ADsGetObject', @ADsG </code></pre> <p>etObject);</p> <p>Once you've created those functions from the external library, you can go about calling them - something like this:</p> <pre><code>var hr : HRESULT; oIADs : IADs; wsTemp : WideString; begin wsTemp := 'LDAP://cn=IanBoyd,cn=Users,dc=YourCompany,dc=com'; // try to bind to the ADSI object using the "sanitized" path hr := ADsGetObject(PWideChar(wsTemp), IID_IADs, oIADs); if Succeeded(hr) then begin // successful - now retrieve all properties into property cache try oIADs.GetInfo; except on EOleSysError do begin Exit; end; end; // get the object's GUID wsTemp := oIADs.GUID; // do more stuff here..... </code></pre> <p>Next, also see my <a href="http://adsi.mvps.org/adsi/Delphi/index.html" rel="nofollow">ADSI Delphi Tips &amp; Tricks page</a> - so of the info is outdated, though (like the link to The Delphi Magazine's collection CD - that doesn't seem to be available anymore).</p> <p>Searching ADSI with native code is quite involved - that would <strong>definitely</strong> go beyond the scope of such a posting. I did write a fairly extensive article on that - including sample code - which is available upon request from me (send me an e-mail to my address in my profile).</p>
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    1. POHow to query ActiveDirectory from native Win32 (i.e. not .NET) code
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    1. COThis answer looks promising, as a solution using only the ADS com objects. But what's the `path` syntax to find a user by account name? (e.g. i am trying `'LDAP://cn=ian,DC=avatopia,DC=com'` but *there is no such object on the server*. My account name (`ian`) can't be my Common Name (`Ian Boyd`)
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    2. CO@IanBoyd: get my [Delphi-based ADSI Browser](http://adsi.mvps.org/adsi/Delphi/adsibrowser.html)! And all your question will be answered :-) Most often, your user would be something like `LDAP://cn=ian,cn=Users,dc=avatopia,dc=com` - or if your users get created somewhere else other than the default `cn=Users` container - substitute that location instead
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    3. COi **did** get it! It looked like there was just a component that shows the basic `rootDSE` properties. Coming up with a way to search by `sAMAccountName` seems to be a secret. e.g. `LDAP://dc=avatopia,dc=com;(&(objectCategory=user)(sAMAccountName=iboyd))` doesn't work. Also, i don't *know* where users will be created; what's the syntax to search the entire `dc=avatopia,dc=com` subtree? All i will have is the user's username (aka `sAMAccountName`, login name, etc)
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