The viewer supports spell checking in one of two ways. For 64-bit viewers and viewers running on Microsoft Windows 10 or later, the viewer looks for independently-install spell checkers that conform to the Microsoft Spell Checking API. If one exists, the spell checking features are enabled. This applies to both the viewer and browser-based report editors. For details on using this spell checker, refer to the spell checker’s user manual.
For the 32-bit viewer, the viewer downloads and installs a spell checking plug-in module and a medical dictionary. You are prompted to install the plug-in module when you first load the viewer. This process installs an application on your PC, which requires Windows administrator privileges on your workstation. If you do not have Windows administrator privileges, contact your local PACS administrator.
To use the
spell checker, click to select the section of the report (i.e., Notes,
Impression, Observation or Addendum) you want to check. Click on the spell
check button, 
, on the
report toolbar in the full report panel. A pop-up window displays
the word needing correction plus suggestions. Click the Change button
to replace the misspelled word with the highlighted suggestion. The Change
All button changes all occurrences of the misspelled word. Another
option is to ignore this instance (Ignore button) or all instances (Ignore
All button) of the word.
To add the word to your dictionary, click on Add. When done checking the text, click Cancel to close the spell checking window. To override the spell checker, create a new dictionary file named precorrect.tlx in the c:\program files\practicebuilder\plugins\spellex directory. Restart the viewer to pick up the changes.