static BOOL IsAdmin(void)  {       HANDLE                   hAccessToken;       BYTE                     InfoBuffer[1024];          PTOKEN_GROUPS            ptgGroups;       DWORD                    dwInfoBufferSize;       PSID                     psidAdministrators;       SID_IDENTIFIER_AUTHORITY siaNtAuthority = SECURITY_NT_AUTHORITY;       UINT                     i;       BOOL                     bRet = FALSE;          if(!OpenProcessToken(GetCurrentProcess(),TOKEN_QUERY,&hAccessToken))         return bRet;                bRet = GetTokenInformation(hAccessToken, TokenGroups, InfoBuffer, 1024, &dwInfoBufferSize);      CloseHandle(hAccessToken);       if(!bRet)          return bRet;      if(!AllocateAndInitializeSid(&siaNtAuthority,                                    2,                                    SECURITY_BUILTIN_DOMAIN_RID,                                    DOMAIN_ALIAS_RID_ADMINS,                                    0,0,0,0,0,0,                                    &psidAdministrators))                   return FALSE;                                       bRet = FALSE;          ptgGroups = (PTOKEN_GROUPS)InfoBuffer;       for(i=0;i<ptgGroups->GroupCount;i++)                if(EqualSid(psidAdministrators,ptgGroups->Groups[i].Sid))                     bRet = TRUE;                       FreeSid(psidAdministrators);        return bRet; }