I recently bought the Digital Sound Factory Winds Brass Percussion Cakewalk Sound Center Expansion Pack with the coupon from Cakewalk (Thanks Cakewalk!!) but after installing it the expansion pack did not show up in Sound Center.
 
The samples were installed to the correct folder, but the program files were incorrectly installed on the C: drive, instead of the correct location on the E: drive.
 
I moved the entire folder structure from C:\ProgramData\Cakewalk to the same location on the E: drive and now the expansion pack shows up in Sound Center.
 
Phew!
 
Cheers
Eddie

Phew, indeed. Thanks for posting that. I'm sure you're not the only one who's gonna have that problem. Sound Center is Super fun. I have a great time with the various instruments from the Winds/Brass/Prec expac. It really takes the previous synths I was using up a notch.