CODEWITHSUNDEEP
kernelwindows-kernelkernel-modekmdfusermode
Eswar Yaganti
Eswar Yaganti

Reputation: 2646

How to start a user mode program from kernel mode in windows

I have a driver (kernel mode)(KMDF) and i have a user preferences form. i need to start the activity from the driver code and get the preferences. so how do i start that user mode program from kernel in windows operating system ?

Upvotes: 0

Views: 2229

Answers (2)

lordjeb
lordjeb

Reputation: 1306

The best way to get a driver to do something in user mode is to have it communicate with a user mode component that can do the work. So you do something like have a user mode service, that opens a channel to the driver, then when the driver needs to do something (e.g., launch a process), it can send a message to the service.

Search osronline for the inverted call model for more information, or look at the FltSendMessage API documentation if you're building a mini-filter.

As other posters have noted, doing this in DriverEntry is probably not going to work since there is likely not even a user session to communicate to.

Upvotes: 3

julio uniqum
julio uniqum

Reputation: 58

Simply you can't unless you use weird undocumented tricks like APC, that could cause many many incompatibility problems; just place your application as automatic startup (CurrentVersion\Run for example) and send an IRP to the driver with the data you need to send.

Upvotes: 1

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