Now that we've dissected a simple but rather powerful Vortex application, let's cover some advanced topics:

• Search and replace

• Dynamic error handling

• Geographic searching

• Adding user functions

• 10.1 rex and sandr
• 10.2 Dynamic Error Handling
• 10.3 Geographic Searching
• 10.4 Fast Value Lookup - xtree
• 10.5 Creating User Functions in C
• 10.6 Multi-part File Uploads
• 10.7 Controlled Access Applications