IDeskBand 구현시 레지스트리 항목에 대해

IDeskBand 구현시, MSDN의 Creating Custom Explorer Bars, Tool Bands, and Desk Bands 항목에 나온

레지스트리 등록으로 등록된 밴드가 메뉴에 나오지 않았다. (내 시스템은 XP x64)

SDK 예제를 보 OS 버젼검사를 해서 다른 레지스트리 값도 등록을 해주고 있었다.

OSVERSIONINFO  osvi;
osvi.dwOSVersionInfoSize = sizeof(osvi);
::GetVersionEx(&osvi);
if (VER_PLATFORM_WIN32_NT == osvi.dwPlatformId)
{
	// HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Shell Extensions/Approved/
}

Registering Shell Extensions 의  Registering Shell Extension Handlers on Windows NT and Windows 2000 Systems 항목에서 이에 관련된 이 부분을 찾을 수 있었다.

Registering Shell Extension Handlers on Windows NT and Windows 2000 Systems

Because Windows NT and Windows 2000 systems are designed to be used in a managed environment, installing a Shell extension handler might be somewhat different than for Windows 95 and Windows 98 systems. In particular, access to the registry could be administratively restricted, requiring a somewhat different approach to installation than described in the previous section.

Note  The following discussion applies to both Windows NT and Windows 2000 systems. However, with Windows 2000 and later systems, setup programs should generally not write directly to the registry. Instead, setup should be accomplished with Windows Installer packages. These tools ensure that software runs well under Windows 2000, and provides access to new capabilities, such as per-user class registration.

Shell extension handlers run in the Shell process. Because it is a system process, the administrator of a Windows NT system can limit Shell extension handlers to those on an approved list by setting the EnforceShellExtensionSecurity value of the Explorer key to 1 (one), as shown here:

HKEY_CURRENT_USER
     Software
          Microsoft
               Windows
                    CurrentVersion
                         Policies
                              Explorer
                                   EnforceShellExtensionSecurity = 1

To place a Shell extension handler on the approved list, create a REG_SZ value whose name is the string form of the handler's GUID under the Approved key.

HKEY_LOCAL_MACHINE
     Software
          Microsoft
               Windows
                    CurrentVersion
                         Shell Extensions
                              Approved

For example, the following example adds the MyCommand and MyPropSheet handlers to the approved list.

HKEY_LOCAL_MACHINE
     Software
          Microsoft
               Windows
                    CurrentVersion
                         Shell Extensions
                              Approved
                                   {00000000-1111-2222-3333-444444444444} = MyCommand
                                   {11111111-2222-3333-4444-555555555555} = MyPropSheet

The Shell does not use the value that is assigned to the GUID, but it should be set to make inspecting the registry easier.

Your setup application can add values to the Approved key only if the person installing the application has sufficient privileges. If the attempt to add an extension handler fails, you should inform the user that administrative privileges are required to fully install the application. If the handler is essential to the application, you should fail the setup and notify the user to contact an administrator.

While there is no need to add values to the Approved key on Windows 95 or Windows 98 systems, there is no harm in doing so. The system will simply ignore them. However, there is no guarantee that the key will exist on these systems. Your setup program must be able to handle this case.