DDK sample port monitor ERROR

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C

WDK

hi：
I try development of printer driver's "port monitor" on Windows xp .I referred to WDK sample which is "WinDDK\7600.16385.1\src\print\monitors\localmon and localui.I succeeded in a compilation,but failed in installing

An error occurred while installing port monitor 'DDK sample port monitor'. Please contact manufacturer for assistance

I am using following instructions to install it

Open 'Devices and printers' folder. Right click on my targeted printer and choose 'printer properties'. Click the 'Ports' tab, and then click the 'Add Port...' button. On the Printer Ports dialog, click the 'New Port Type...' button. Type the path to the INF file in the text input box, and then click OK.