[Pericles]

Hola, te paso información que figura en ayuda de windows.. y función ejemplo de llamadas desde delphi 2010... estimo que funcinoaria sin problemas en delphi 7.

Saludos
Nicolas Perichon

Elemento a modificar en Registro de windows:

HKEY_LOCAL_MACHINE (or HKEY_CURRENT_USER)
SOFTWARE Microsoft Internet Explorer Main FeatureControl
FEATURE_BROWSER_EMULATION
contoso.exe = (DWORD) 000090000

info de Microsoft:
msdn.microsoft.com/en-us/library/ee330730%28VS.85%29.aspx#browser_emulation

Código Delphi [-]
procedure SetRegistryData(RootKey: HKEY; Key, Value: string;
     RegDataType: TRegDataType; Data: variant);
var
   Rergistro: TRegistry;
   texto: string;
begin
     Rergistro := TRegistry.Create(KEY_WRITE);
     try
          Rergistro.RootKey := RootKey;
          if Rergistro.OpenKey(Key, True) then
             begin
                     try
                            //rdUnknown, rdString, rdExpandString, rdInteger, rdBinary
                            if RegDataType = rdUnknown then RegDataType := Rergistro.GetDataType(Value);
                            if RegDataType = rdString then
                               Rergistro.WriteString(Value, Data)
                               else if RegDataType = rdExpandString then
                                    Rergistro.WriteExpandString(Value, Data)
                               else if RegDataType = rdInteger then
                                    Rergistro.WriteInteger(Value, Data)
                               else if RegDataType = rdBinary then
                                    begin
                                         texto := Data;
                                         Rergistro.WriteBinaryData(Value, PChar(texto)^, Length(texto));
                                    end
                               else
                                    raise Exception.Create(SysErrorMessage(ERROR_CANTWRITE));
                     except
                             Rergistro.CloseKey;
                             raise;
                     end;
                     Rergistro.CloseKey;
             end
          else
              raise Exception.Create(SysErrorMessage(GetLastError));
     finally
             Rergistro.Free;
     end;
end;

Ejemplo de codigo de llamada:

Código Delphi [-]
 SetRegistryData(HKEY_LOCAL_MACHINE,
    '\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION',
    'contoso.exe',rdBinary, 9999 );