Directory where the dtSearch Engine and support files are located.

This may be a shared, read-only network directory, and is usually the folder where the dtSearch Engine is located. 

The dtSearch Engine automatically loads external file parser DLLs from the viewers subdirectory of the HomeDir directory. If no Home directory is supplied, the dtSearch Engine will attempt to determine the location of its home directory using Windows system calls. Often this will work, but it is better to supply a specific Home directory. 

For more information, see "The HomeDir, PrivateDir, and TempFileDir option settings" in the dtSearch Engine API Reference (dtSearchApiRef.chm).