Affirmative, after un-installing SmartWare, I could still access my WD MyBook drive. On other PCs on my network, I don'thave Smartware installed and I found I can access the drive as well. I checked Task Manager (all users) and there is no sign of any WD processes. WDFME.exe is definitely gone.
In My Computer or Windows Explorer, do you see it when you click on Network? You should at a minimum see listed the PC you are using. I find it takes up to a minute for other PCs and the MyBook to appear in the Network list sometimes. But it' there.
What if you use a web browser to go to http://mybooklive/UI/ I find that wakes the drive up and speeds up its appearance in Windows Explorer. Keep trying, the MyBook drive appears to be working for me without SmartDrive.
In Windows 7, I don't use the home group (or whatever it's called), I don't know if that's a factor.