You might check out Debloater at XDA. It was originally written for Samsung devices, but seems to work for other devices too. The developer, gatesjunior, is active with the program and will answer any questions you have. Read the thread, or Search the thread for HTC to read specific comments on HTC devices. I own Samsung devices, and don't know if Debloater works flawlessly for other devices, but it works flawlessly for me and I use it instead of paying for Package Disabler Pro.
By the way, if it helps you please consider donating to gatesjunior... he works hard for many people! Thanks!