Easy method to root dhd
You can root your dhd easily in very simple way.......
Note: I tried it on stock android 2.3.5 Rom.
1. Unlock bootloader from HTC dev.
2.flash latest cwm touch recovery.
3. download supersu zip file that I have attached from computer or your phn. If you download on computer than put it on your phn sdcard.
4. Install that zip supersu from cwm and reboot.
Voila your device is rooted and you can check that by installing any root app.
5. After root install busybox from playstore.
I have rooted my phone by this method. I hope it will help.
Download supersu zip from this link
Sent from my HTC Desire HD A9191 using xda app-developers app