integrated webcam does not work after windows 7 install  

Sorry for the delay, I've been flat out at work lately!
Here is the Vista 32 bit driver for your laptop:
HP Webcam Driver with Firmware Upgrade for Microsoft Windows Vista HP Pavilion dv9040ea Notebook PC - HP Customer Care (Australia - English)
you may also need to install:
Webcam Fast Recording Patch
Install them both using Vista compatability.
Do you have any webcam or video chat software installed? Although you may have the drivers installed, you might need software to access it easily :)

sbsumerix said:

i have the same problem but i cant find those drivers for my computer any help? hp dv9815nr thanks guys

Have you tried your support page - HP Pavilion dv9815nr

Try the driver above posted by Orpheous, as it's the same series as yours.

s0ultkr said:

ne1 got dv4-165dx for HP webcam

Assuming you've missed a "2" out of that model number, try having a look here...

- HP Pavilion dv4-2165dx