Excluding files from scan

Hi
 
I have an issue when installing PTP Accounts.  The tallcomponents.pdf.controls.
winforms.dll keeps getting picked up as a threat and is then deleted.  I ran a manual scan on one machine and selected to ignore the threat but I can't do this for every machine.
 
Is there something I can do to prevent the scan detecting this file as a threat?
 
Thanks
Paul