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Register/unregister my BHO using Delphi code

Posted on 2006-06-18
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Last Modified: 2012-06-27
I wish to register/unregister my BHO from my application. How to do this?
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Question by:ginsonic
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LVL 26

Expert Comment

by:EddieShipman
ID: 16936913
Just create the correct registry entries. Next time IE loads, it will load the BHO.
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LVL 9

Author Comment

by:ginsonic
ID: 16939646
How?
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LVL 26

Expert Comment

by:EddieShipman
ID: 16942436
Usign TRegistry, I KNOW you know how to do that.
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LVL 9

Author Comment

by:ginsonic
ID: 16944065
Sorry to say but not :( I write app from hobby and not as a job.
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LVL 26

Expert Comment

by:EddieShipman
ID: 16944145
What is the GUID (CLSID) you used for your BHO?
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Accepted Solution

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EddieShipman earned 200 total points
ID: 16944380
Here is code from the IEBrowserHelper class to register itself:

procedure TIEBrowserHelperFactory.AddKeys;
var S: string;
begin
  S := GUIDToString(CLASS_IEBrowserHelper);
  with TRegistry.Create do
  try
    RootKey := HKEY_LOCAL_MACHINE;
    if OpenKey('Software\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\' + S, TRUE)
      then CloseKey;
  finally
    free;
  end;
end;

If you look at the source here is the CLASS_IEBrowserhelper definition:
const
  Class_IEBrowserHelper: TGUID = '{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}';
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LVL 9

Author Comment

by:ginsonic
ID: 16951628
I don't see anything about my dll name. Where to specified where and what is my BHO dll.

And how to unregister?
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LVL 26

Expert Comment

by:EddieShipman
ID: 16952178
Look, if you don't provide more info, how can I help you?
It has NOTHING to do with DLL names or anything.
It goes off the GUID.

Unregister is just remove the registry entry.

Now, you may be able to register/unregister your DLL using regsvr32, but I'm not sure.
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LVL 9

Author Comment

by:ginsonic
ID: 16952331
the BHO is a dll that in my demo case is name IEhelper.dll, but I can name it test.dll. I wish to register this dll as every time when I run an IE instance to start my dll too.

For testing I use Register ActiveX Server from Delphi IDE. But wish to add it to install or at the first time running.
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LVL 9

Author Comment

by:ginsonic
ID: 16952354
If I don't tell to registry to use my test.dll how can IE know what to use? I can have ten BHO in the same time for same IE instance.
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LVL 26

Expert Comment

by:EddieShipman
ID: 16952642
As I said before, it doesn't matter WHAT you name it, it MUST have a GUID.
and you HAD to create a GUID for your DLL in order for it to be a BHO.

You can use the code I showed above to add it to the registry.

Maybe you need to readup on the registering of BHO's:
http://msdn.microsoft.com/library/en-us/dnwebgen/html/bho.asp?frame=true#bho_registration

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