Check your smartcam.ini and machdef.ini files located in your Windows directory. The INI files should point to the v12 install area. The default area is C:\Program Files\SmartCAM\SmartCAMv12\
In the C:\windows\smartcam.ini file under [Defaults] check that your path lines looks like this:
SmartCAMPath=C:\Program Files\SmartCAM\SmartCAMv12\
And in the C:\windows\machdef.ini file under [defaults] check that your path line looks like this:
desfname=C:\Program Files\SmartCAM\SmartCAMv12\SHARED\WMDEF.DES