show and hide. xp扩展名

reg add "HKCUSoftwareMicrosoftWindowsCurrentVersionExplorerAdvanced" /v HideFileExt /t reg_dword /d 00000001 /f

taskkill /f /im explorer.exe

start explorer.exe

reg add "HKCUSoftwareMicrosoftWindowsCurrentVersionExplorerAdvanced" /v HideFileExt /t reg_dword /d 00000000 /f

taskkill /f /im explorer.exe

start explorer.exe

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原文地址：https://www.cnblogs.com/txwtech/p/12484514.html