I've installed the component on the master site.

I host 4 domain names in the the same hosting service.

I configured an already installed joomla (slave site) and all the domains were messed up (files deleted on a domain which was not concerned in any way in the slave configuration (domain name or even the folder) an .htaccess and other folders which i cannot delete anymore (using filezilla). It doubled all the domains (which were not concerned by the configuration).

So I cannot say my experience with this component was really a success or incline me using it. If I have to reinstall the files everytime, I have other things to do with my time I'm sorry.

I followed the documentation but it seems that it's not working really well for me.

Sincerely

Laurent (sorry but I have to get by to a complete reinstall of one of the site, since i repare the others, so it seems)

If someone has any hint to erase the foldes created in the slave folder, you are more than welcome

If you are not allowed to delete the file or folders, this simply mean that the owner of the files or folder is different of the user that request to delete the files and folder.

So you have to check your permission and the owner of the files and folders.
Compare to the owner of the files and folder that you want to delete with the want that is used by the tool that you are using to delete them.

You are probably facing with a permission issue because the Joomla that you have installed has different permission than the "apaches" or IIS permission.
If you have installed Joomla with a privileged user like a root or an administrator this may be the origin of your problem.
When you try to manage those file with Joomla, you will use the apaches or IIS user that may have less privileges than the user that was used to "unzip" or install the files.

Normally, when you are working with shared hosting, the hosting company provide you user that are compatible with the "apaches" or IIS.
We suspect that you are using your own server or dedicated server an that you have used a privileged user that may result in problem for the installation and perhaps also to un-install or deletion of files.