The bootloader is the very first part of the mobile phone that starts up, and it usually has the capability to enter a reflash mode or various other debug or diagnostic modes.

Boot Loader Extractor is a freeware application that can extract your Windows mobile device’s bootloader. The reason you may want to extract the bootloader before flashing your device ROM or upgrading to a new OS (such as Windows Mobile 6.0) is to have a working copy of your bootloader so that just in case the flash/upgrade fails, you won’t be left with a non usable brick of a device.

Download Link

Note: I haven’t tested this utility but do let me know in the comments if it worked for you.