apang

@echo off
set "v_reg=HKLM\SYSTEM\ControlSet001\Services\NetBT\Parameters"
for /f "tokens=3" %%a in ('reg query %v_reg%^|find /i "EnableLMHOSTS"') do (
  if "%%a"=="0x1" (set d=0x0) else set d=0x1
)
reg add %v_reg% /v EnableLMHOSTS /t reg_dword /d %d% /f
pause
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XP下测试成功