Use the Manager ActiveX control to easily add SNMP manager functionality to your application. Provides an easy-to-use interface that handles the details of querying SNMP agents.

• Start() method turns on asynchronous processing to receive Inform and Trap messages (raises Inform and Trap events)
• Build a request message by setting properties, adding variables (OIDs) using simple Variable objects, and sending it using
  - GetResponse() sends the request message to a single agent, returning a response message
  - GetResponses() sends the request message to a broadcast address, returning an array of all response messages received
• Walk() sends multiple messages to a specified agent, returning a list of variable values that exist under the specified root OID (retrieving all table values in one easy step)
  - Specify whether GetNext or GetBulk messages should be used, what the timeout should be, and whether the method should attempt retries
  - Use the return value as a flat list, or use ToTable() to format variables into a dimensional array indexed by row and column
• GetResponse(), GetResponses() and Walk() can be executed using three possible threading techniques (for optimal operation in any environment)
  - Free-threading operation is used for environments like ASP, services, or console applications where no message loop is present
  - Pseudo-blocking operation is used to block execution and process the message loop while work executes on a worker thread
  - Asynchronous operation is used for event-driven environments like VB6, where the request executes on a worker thread and raises an event when finished
• Discovery of v3 authoritative engine ID, time, and boots is automatic ... just address an Agent using an IPEndPoint object and discovery happens automatically
• Discovered authoritative engine parameters are cached and efficiently reused for successive requests

Use the Agent ActiveX control to easily build SNMP agents. Provides an easy-to-use interface that handles the details of processing and responding to SNMP managers' requests. Sends traps.

• Start method turns on agent asynchronous processing
  - Request event is raised when a request message arrives and includes a default response message
  - Log event is raised for logging all incoming/outgoing messages
  - Error event is raised to report errors
  - Binds to any IP address (version 4 or 6, IP_ANY and LOOPBACK)
• Independently encodes and sends trap and notification messages to managers (local IPEndPoint can be specified)
• Automatically generates default response messages from the local MIB object that can be sent as-is or modified by your application
• Automatic, on-the-fly message encoding and decoding
• Implements a v3 authoritative engine object that responds with v3 report messages
• Handles all v1, v2 and v3 Get, GetNext, GetBulk and Set requests and error reporting
• Console and web applications without a message loop are fully supported using MTA (Multi-Threaded Apartment Model) option
• Windows forms applications with a message loop are fully supported using asynchronous STA (Single-Threaded Apartment Model) option
• Build a message by setting properties, adding variables (OIDs) using simple Variable objects, and sending the message. It doesn't get any easier!