Ok, so I searched online and found this fix works at least for me. First I have to thank:
Rusty Glessner and MMNielson for this fix.
ou may need to manually force Stutter Edit to be listed as a VSTi plug-in for Sonar. You can do this by following these steps: 1.) Open the registry editor by typing 'Regedit' in the "Start (menu) - 'Search programs and files' (dialog box)"
2.) Navigate in the registry editor to the following directory:
3.) Computer\HKEY_Current_User\Software\Cakewalk Music Software\SONAR Producer\Cakewalk VST X64\Inventory\c:/program files/cakewalk/vstplugins/iZotope Stutter Edit.dll That one still had "0" under the "isSynth" value. I changed that to "1", went back in to Sonar, and Stutter Edit appeared in the Soft Synth list.
4.) Once this value is changed, please load Sonar and attempt to load Stutter Edit within the Soft Synth menu for the FX window.
P.S. Don't worry about the x86 one if your on 64bit because that one seems to be right. Just follow up above.