[HTC Desire S] Auke11:
For rooting my device i found this step. I have read a lot and have adjusted this steps to my needs... Maybe you or someone else can make profit off it.

1. to not avoid warrancy ( Dont use htcdev unlock!)

2. download adb tools http://xdaforums.com/showthread.php?t=1272595

3. install htc sync for drivers then disable/uninstall htc sync. (windows)

4. check your phone software and hboot version on boot menu (GUIDE LINK)

http://xdaforums.com/showthread.php?t=1186401

5. downgrade to oldest RUU with hboot 0.90.xxx something if don’t want use htcdev unlock

1.28.401.1 RUU_Saga_HTC_Europe_1.28.401.1_Radio_20.28b.30.080 5U_38.03.02.11_M_release_177977_signed.exe

above ruu is only fore unbranded europe phones... YOU may need a different one!!!!!!!!!!!

6. to do this it depends on software on phone.

if its new like 2.11.xx-> use tacoroot guide.

http://xdaforums.com/showthread.php?t=1443636

if its older like 2.10.xx use the zergrush guide.

http://xdaforums.com/showthread.php?t=1399331&highlight=zergrush (deze heb ik moeten gebruiken)

7. use revolutionary guide to S-Off And root ( this is possible only in oldest version of original RUU).

http://xdaforums.com/showthread.php?t=1186401

http://revolutionary.io/

8Update hboot naar eng hboot:

http://xdaforums.com/showthread.php?t=1679338

9. install 4ext recovery touch. do your backups.

We're going to install EXT4 recovery. But first download ''4EXT_Recovery_v2.2.7_RC5.zip'' and extract the recovery.img file to the folder where you installed fastboot and adb. If you followed the tutorial in step 1 the folder will be ''C:\android-tools''

Now make sure Fast Boot is turned off on your phone. Go to ''Settings > Power > Fast Boot'' to turn it off. Unplug your phone from your computer, it's time to turn of your phone and boot into your bootloader.

Press Volume Down Button and Power Button at the same time to boot into recovery. Now connect your phone to your computer and select fastboot.

(Power button to select, Volume Down/Up to navigate)

Go to start->run-> type cmd and press enter. A command prompt will now appear.

Type:

cd c:\android-tools [press enter]

fastboot flash recovery recovery.img [press enter]

EXT4 recovery is now installed on your phone. Turn off your phone in bootloader menu.

EXT 4 later updaten naar: http://xdaforums.com/showthread.php?t=1377745

10. download preferrable custom rom. Copy it to SDCARD root.

11. Flash custom rom. ( GUIDE LINK )

How To: Flash Custom ROMs using Recovery (Method 1)

(You can use your default recovery from Revolutionary tool but I recommend using 4EXTRecovery)

1. Copy your custom ROM "zip" file to your SD card (Root directory).

2. Turn off your phone.

3. Turn on your phone by holding the power button and the volume down button together.

4. Once you see the white screen, choose "Recovery"

5. Make a full wipe/format and clear all cache.

6. Choose "install from sdcard/zip file" and then choose your Custom ROM zip file from your SD card to flash your Custom ROM.

Optional: If you want to use 4EXTRecovery, just flash it like you are flashing your custom ROM(Step 6). Just do it before you flash your new ROM.

.

12. Enjoy and have a beer!

-when using Win7 you can start CMD in specific folder (avoid 5-10 cd's or long/path/to/folder) by holding shift+right click/open command window here)