??? 很简单，安装这个虚拟硬件的驱动即可。查找驱动然后定位到xpvcom.inf。问题在于我想把这些工作打包，全部自动执行，不用点来点去。想起了以前解决OSD的ACPI问题时用的工具，devcon。

??? DEVCON是设备管理器的命令行版本，可以查看其帮助：

C:\Users\hhu\Desktop\WME\Drivers>devcon /?
Device Console Help:
devcon [-r] [-m:\\][...]
-r if specified will reboot machine after command is complete, if needed.
is name of target machine.
is command to perform (see below).
... is one or more arguments if required by command.
For help on a specific command, type: devcon help
classfilter????????? Allows modification of class filters.
classes????????????? List all device setup classes.
disable????????????? Disable devices that match the specific hardware or instanc
e ID.
driverfiles????????? List driver files installed for devices.
drivernodes????????? Lists all the driver nodes of devices.
enable?????????????? Enable devices that match the specific hardware or instance
ID.
find???????????????? Find devices that match the specific hardware or instance I
D.
findall????????????? Find devices including those that are not present.
help???????????????? Display this information.
hwids??????????????? Lists hardware ID's of devices.
install????????????? Manually install a device.
listclass??????????? List all devices for a setup class.
reboot?????????????? Reboot local machine.
remove?????????????? Remove devices that match the specific hardware or instance
ID.
rescan?????????????? Scan for new hardware.
resources??????????? Lists hardware resources of devices.
restart????????????? Restart devices that match the specific hardware or instanc
e ID.
sethwid????????????? Modify Hardware ID's of listed root-enumerated devices.
stack??????????????? Lists expected driver stack of devices.
status?????????????? List running status of devices.
update?????????????? Manually update a device.
updateni???????????? Manually update a device (non interactive).

??? 为了安装这个虚拟硬件，只需要运行以下命令行：

devcon install xpvcom.inf "root\XPVCOM"
devcon rescan

??? 你要问“root\XPVCOM”设备描述符哪里来的？打开inf文件就能看到

[Standard]
;
;

%XPVCOM.DeviceDesc%=XPVCOM_Device,root\XPVCOM
……

??? 命令行安装一个驱动，就这么简单。

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