you just completly said what i said..... ccleaner has not been coded as back ground worker.
why oh why would u try to create an app to run an app
/me sighs
Try revrting back to an older version. I'm sure the devs try to cater still for 98 users but reality is it's 12 years old os.
edit: Just notice you tried this.
In programming you have error handling. When doing a particular operation you should try to think what could be the poissible errors. For example if you was trying to delete a file what could be the poissible errors???
File is in use
File is missing
and so on. So you catch these exceptions. But there is a chance it could capture an exception that has not been declared. Hence unknown exception.
Basically unknown error.