I download xoops2.2.3 and want to install and get the following error message:
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Warning: copy(../mainfile.php): failed to open stream: Permission denied in c:\hosting\xxxx\install\class\mainfilemanager.php on line 52

Saving configuration data..
Could not write into mainfile.php. Please check the file permission and try again.
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But I already set mainfile writable, readable, excutable and I already pass the 'Checking file and directory permissions' . I don't know why.

My virtual URL is http://www.mydomain right ?

Thanks for the help.