This is a clear fact that you cannot read any information present on OST file if you don’t have an Outlook Application installed on the system. So if are in such a situation that you want to view OST file but you don’t want to install MS Outlook then you are at the right place.
I am going to tell you a professional tool which helps to view OST file although you don’t have an Outlook Application. All the facility is free of cost. It will not cost you anything. You just have to download the tool and browse the OST file to open it.
The tools is Free OST Reader which is designed with such algorithm that it scans the OST file and display all the details to the user. The user can read emails and view contacts with the help of this tool. The friendly user interface enables the user to run the software on his own.
There are three scanning modes in this tool which scans the OST file deeply and then display the results in front of the user. You can try this tool because it is absolutely free and you don’t have to install MS Outlook on your system.
Adviser for Technical issues 