| AutoManageDocumentFormats | (Deprecated, see remarks) Gets or sets the flag indicating if the search engine should perform default document processing. |
| CharactersPerLine | Maximum number of characters per line. |
| EnhancedDocumentSearching | The document searching configuration |
| EOLMac | Gets or sets the flag indicating if Mac style End Of Line characters, i.e. Carriage Return (0x0d), are used |
| EOLUnix | Gets or sets the flag indicating if Unix style End Of Line characters, i.e. Line Feed (0x0a), are used. |
| ExtensionPlugInList | List of registered plug-in extensions. |
| IFilterTypes | Gets or sets a comma separate list of file types to try and register as IFilters |
| LinesPerFile | Gets or sets the maximum number of lines returned for each file. |
| OCRAnalysis | The OCR analysis configuration |
| SearchEmail | The email searching configuration. |
| SearchMode | Gets or sets the search mode |
| SearchThreadCount | Gets or sets the numbers of threads that can be used to search the contents of files. |
| SevenBitChars | Gets or sets whether or not the search ignores the 8th bit of any char. |
| SurroundingLinesAfter | Gets or sets the number of lines following a found line of text that should be returned with the text line. |
| SurroundingLinesBefore | Gets or sets the number of lines preceding a found line of text that should be returned with the text line. |