Jintellitype uses the Bloodshed Dev C++ IDE for compiling the JIntellitype.dll.
1. Once you have DevC++ installed, just open the JIntellitype.dev project file.
2. Navigate to the menu option Project->Options.
3. Make sure to set the entries in the screenshot below to your JDK location.
4. Change your Project->Options Build Options to point to an output directory of your choosing.
5. Use the menu or toolbar button to build the DLL!