This is a known issue. The 2.0.3 and 2.0.4 Bitnami builds for Windows had PHP compiled with the wrong version of Visual C++. We're working to get this corrected.
If you don't have a need for V8JS scripting (which was added to Windows in 2.0.3) you can install the 2.0.2 version instead and then use the instructions on http://wiki.dreamfactory.com to update your DF code to the latest version.