This is a Windows system installed file with Windows File Protection (WFP) enabled.
There are 47 versions of oleprn.dll in the wild, the latest version being 6.3.9600.16384 (winblue_rtm.130821-1623). The average file size is about 105.64 KB.
(Note, the behaviors below are for all versions of oleprn.dll, select a unique version for details.)
Marked as a safe ActiveX control for Internet Explorer (digitally signed with script execution permission)
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
United States installs about 49.25% of Oleprn DLL.