Just had to reinstall Sony Soundforge 11.0 in Sonar X3e and noe get the error message when trying to edit a wav clip.
 
Prior to reinstall it worked fine
 
I made no changes in the reg file and the Sony install directory path is the same
Here's the reg info
 
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software\Tools Menu\Sound Forge Pro 11]
"ExePath"="C:\\Program Files (x86)\\Sony\\Sound Forge Pro 11.0\\Forge110.exe"
"MenuText"="&Sound Forge Pro 11"
"StatusBarText"="Run Sound Forge Pro 11"
"Type"="WaveEditor"
 
Any ideas?
Thanks,
Fred

Does SoundForge run stand alone? Is SONAR running as administrator?

Running Sonar as Administrator did the trick.
Don't remember if I had it setup that way before but it was working and all I did was reinstall SF-11
 
MANY THANKS.
Fred