New MailScanner Front-End (MSFE) v4.01

Changes:

• v4.01 – Modified installation routines to better support old OS’s (only applies to updates v4.01+)
• Set Virus Scanning default to To: instead of FromOrTo: for new installations
• Added Performance tweak to enable/disable outgoing virus scanning
• Added note to Performance tweak – if Dangerous Content scanning is disabled, File Attachment checking is also disabled