Adds VCF file format support.
Features
- Added VCF file format support. (A VCF file or vCard file is a file format for storing contact information for a person or an organization. Contact information such as: name, address, telephone number, email address and Web-site address is held in a vCard file).
- Simplified caching interface.
- Obtain the statuses of layers contained in CAD documents
- Obtain email messages contained in Outlook Data File documents as attachments.