MailsDaddy PST viewer Pro is also available for those users who want to save or export PST file to EML, MSG, MHTML and other formats after viewing these items. But if you want viewing PST file messages without Outlook only, then it is better to go with MailsDaddy free PST viewer which is absolutely free for reading PST file items.
1) You can search PST file from a drive or choose required one manually.
2) The PST viewer previews emails, contact, calendars and tasks.
3) Previews mail messages along with corresponding attachments.
4) Search Mails(s) to find out and view required messages only.
5) Available Pro edition to export PST file to other required formats.
6) PST viewer Pro also saves email attachments into original format.