ccleaner is that best program I see ever.
I looking forward to see in next ccleaner more tools like fix .dll files or remove unremoveble. I was having a problem some idiotic virus. It was hiding in .dll files

CCleaner isn't a .dll file healer for viruses, Windows has it's own built in tools to replace corrupt .dll files in Win9x called "SFC.exe" and on WinXP "SFC /scannow". CCleaner isn't a malware remove in any sense other than the ability to purge the browser cache and temp folder on systems where an infection may originate. You're better off having an up-to-date antivirus software, antispyware software, and firewall installed for preventing and dealing with infections.

Also since you recently had a virus it's recommended that you follow the Spyware Removal Guide Version 2 to determine if your system is actually clean.