Windows Vista 中服務與使用者級別應用程式的互動

PHANDLE GetCurrentUserToken()
{
    PHANDLE currentToken = 0;
    PHANDLE primaryToken = 0;

    int dwSessionId = 0;
    PHANDLE hUserToken = 0;
    PHANDLE hTokenDup = 0;

    PWTS_SESSION_INFO pSessionInfo = 0;
    DWORD dwCount = 0;

    // Get the list of all terminal sessions    WTSEnumerateSessions(WTS_CURRENT_SERVER_HANDLE, 0, 1, &pSessionInfo, &dwCount);

    int dataSize = sizeof(WTS_SESSION_INFO);
    
    // look over obtained list in search of the active session
    for (DWORD i = 0; i < dwCount; ++i)
    {
        WTS_SESSION_INFO si = pSessionInfo<i>;
        if (WTSActive == si.State)
        {
		// If the current session is active – store its ID
            dwSessionId = si.SessionId;
            break;
        }
    }

    // Get token of the logged in user by the active session ID
    BOOL bRet = WTSQueryUserToken(dwSessionId, currentToken);
    if (bRet == false)
    {
        return 0;
    }

    bRet = DuplicateTokenEx(currentToken, TOKEN_ASSIGN_PRIMARY | TOKEN_ALL_ACCESS, 0, SecurityImpersonation, TokenPrimary, primaryToken);
    if (bRet == false)
    {
        return 0;
    }
    return primaryToken;
}

BOOL Run(const std::string& processPath, const std::string& arguments)
{
    // Get token of the current user
    PHANDLE primaryToken = GetCurrentUserToken();
    if (primaryToken == 0)
    {
        return FALSE;
    }
    STARTUPINFO StartupInfo;
    PROCESS_INFORMATION processInfo;
    StartupInfo.cb = sizeof(STARTUPINFO);

    SECURITY_ATTRIBUTES Security1;
    SECURITY_ATTRIBUTES Security2;

    std::string command = "\"" + processPath + "\"";
    if (arguments.length() != 0)
    {
        command += " " + arguments;
    }

    void* lpEnvironment = NULL;

    // Get all necessary environment variables of logged in user
    // to pass them to the process
    BOOL resultEnv = CreateEnvironmentBlock(&lpEnvironment, primaryToken, FALSE);
    if (resultEnv == 0)
    {                                
        long nError = GetLastError();                                
    }

    // Start the process on behalf of the current user
    BOOL result = CreateProcessAsUser(primaryToken, 0, (LPSTR)(command.c_str()), &Security1, &Security2, FALSE, CREATE_NO_WINDOW | NORMAL_PRIORITY_CLASS | CREATE_UNICODE_ENVIRONMENT, lpEnvironment, 0, &StartupInfo, &processInfo);
    CloseHandle(primaryToken);
    return result;
}

    BOOL result = CreateProcessWithTokenW(primaryToken, LOGON_WITH_PROFILE, 0, (LPSTR)(command.c_str()), CREATE_NO_WINDOW | NORMAL_PRIORITY_CLASS | CREATE_UNICODE_ENVIRONMENT, lpEnvironment, 0, &StartupInfo, &processInfo);