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The list of installed programs you can find in registry in HKEY_LOCAL_MACHINE using Software\Microsoft\Windows\CurrentVersion\Uninstall path. We will display programs, which contains DispalayName parameter.
uses Registry;
...
procedure TForm1.Button1Click(Sender: TObject);
var
MyList: TStringList;
MyRegistry: TRegistry;
i: Integer;
Str: string;
begin
MyRegistry:=TRegistry.Create;
MyList:=TStringList.Create;
with MyRegistry do
begin
RootKey:=HKEY_LOCAL_MACHINE;
if OpenKey(
'Software\Microsoft\Windows\CurrentVersion\Uninstall',
False)=True then GetKeyNames(MyList);
CloseKey;
for i:=0 to MyList.Count-1 do
begin
RootKey:=HKEY_LOCAL_MACHINE;
OpenKey(
'Software\Microsoft\Windows\CurrentVersion\Uninstall\'+
MyList[i],
False);
Str:=ReadString('DisplayName');
if Str<>'' then
Memo1.Lines.Add(ReadString('DisplayName'));
CloseKey;
end;
end;
end;
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