Windows builds depend Microsoft Visual C++ 2010 Redistributable Package (vcredist_x86.exe resp. vcredist_x64.exe).
These libs are not included you must download and install them manually.
You should also install:
Oracle InstantClient libs
MySQL client libs(MySQL Connector/C)
Graphviz version 2.28(the newer versions are not supported yet)
Then these should be configured:
Edit -> Preferences -> Global Settings -> Paths
(Tora must re restarted for changes to take effect)