Unexpected Error while Registry Cleaning

Hi

since the last 4 Versions (or so) i get this Error everytime i start registry cleaner:

AtlThrow: hr = 0x80070057

CCleaner v4.00.4064

MS Windows XP Professional SP3

Intel Core2 Quad CPU Q6600 @ 2.40GHz

3,0GB RAM

NVIDIA GeForce 7300 LE

ID=-1

PR=3702

DA=

RK=HKCR\

RU=2

CK=-2147483648

SK=

VK=

VA=

CR=2

PF=0

EI=0

FL=0

IIT=0

FI=-1

SI=0

whats going on?

Comodo firewall (deactivated)

Avira free Antivir( deactivated)

please help

thx

Merge your last registry backup before you had the issue.

i don't have any backups. the history is empty...

Do you have a Restore Point you made before the issue?

No, i don't. never made one...

This is a recurring issue for which I have no immediate fix. We'll wait for help from another member. :)