1. Login to Messenger.
2. Click on Tools.
3. Click on Options.
4. Click on “File Transfer”.
5. Place a tick in “Scan files for viruses using:”.
6. Paste the following (including the quotation marks):
"C:/Program Files/ESET/ESET NOD32 Antivirus/ecls.exe" /adv-heur /adware /arch /auto /boots /files /mail /no-log-all /pattern /quarantine /rtp /sfx /subdir /unsafe /unwanted
7. Click on “Apply”.
8. Click on “OK”.