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Frequently Asked Questions

Adding install to Win95 Add/Remove programs.

Question:

How do I get my program listed in the control panels "Add/Remove programs" applet?

Answer:

You can use Install Shield Express that ships with Delphi and

C++ Builder, or you can add this in code using the TRegistry object to

add a new key to the registry under the key:



HKEY_LOCAL_MACHINE\

SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\



The key that you add should be unique, and should reflect the name of

your program: "My Program Name".



Under your new key, you will need to add two items: The name to

display for your program in the control panel applet list, and the

command line to your uninstall program:



Example:



uses Registry;



procedure TForm1.Button1Click(Sender: TObject);

var

  reg: TRegistry;

begin

  reg := TRegistry.Create;

  reg.RootKey := HKEY_LOCAL_MACHINE;

  reg.LazyWrite := false;

  reg.OpenKey(

    'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MyProgam',

    true);

  reg.WriteString('DisplayName', 'My Program');

  reg.WriteString('UninstallString',

   'C:\Program Files\Borland\Delphi 3\MyUninstall.exe UninstalMe');

  reg.CloseKey;

  reg.free;

end;



In addition to uninstalling you application, your uninstall program

should delete the registry keys you added in the previous example.



Example:



uses Registry;



procedure TForm1.Button1Click(Sender: TObject);

var

  reg: TRegistry;

begin

  reg := TRegistry.Create;

  reg.RootKey := HKEY_LOCAL_MACHINE;

  reg.LazyWrite := false;

  reg.DeleteKey(

'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MyProgam');

  reg.free;

end;

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