Oprofile - Version 2.5 OProfile is an application used to generate Microsoft Outlook profiles based on information in the default.prf file. OProfile can create a profile with a custom PST file such as c:\username.pst or c:\winnt\profiles\username\my documents\outlook\ username.pst. While the files will have different names (based on the user name) they will always be in the same location, so your users always have the correct profile no matter which machine they are using.