Error web_statistics_executor.exe

[Giampio]

Hi,
I use Plesk Plesk version: 12.0.18 Update # 30 on Microsoft Windows Server 2012 R2, but the statistics update return error. If I try to run:

"%plesk_bin%\web_statistics_executor.exe"

The system cannot find the file specified. (Error code 2) at CreateProcess '"bin\perl.exe" "C:\Program Files (x86)\Parallels\Plesk\Additional\AWStats\wwwroot\cgi-bin\awstats.pl" -showsteps -showcorrupted -showdropped -config=domain.tld -update'

and file conf are remove from C:\Program Files (x86)\Parallels\Plesk\Additional\AWStats\wwwroot\cgi-bin

In http://kb.odin.com/en/118454 i read "... anti viruses may delete AWstats config files, e.g. awstats.domain.com.conf, during web_statistics_executor.exe work", but i haven't antivirus

If i execute
"C:\Program Files (x86)\Parallels\Plesk\Additional\Perl\bin\perl.exe" "C:\Program Files (x86)\Parallels\Plesk\Additional\AWStats\wwwroot\cgi-bin\awstats.pl" -showsteps -showcorrupted -showdropped -config=domain.tld -update

statistics are update correctly

Thank you