From eScan Wiki
MailScan 6.1a for VOPMail Setup (size: 75,600,640 Bytes)
http://download1.mwti.net/download/mailscan/ms610a/msvo610a.exe
http://update5.mwti.net/download/mailscan/ms610a/msvo610a.exe
http://update6.mwti.net/download/mailscan/ms610a/msvo610a.exe
ftp://ftp.microworldsystems.com/download/mailscan/ms610a/msvo610a.exe
MD5 Hash of msvo610a.exe : 3b3d87a9f83d07551f3ea9e401a65fa6