QueueExplorer features

Delete individual messages - with MMC all you can do is delete all messages from queue (purge), now you can delete individual messages too.
Move and copy messages between queues using drag&drop or clipboard operations.
Access remote queues - not all operations are supported, check limitations for more info
Save/load - one or several messages can be selected at once and saved to single file. Messages can be loaded later to the same or another queue, on the same or different computer. This is great for backup purposes or for saving messages for later testing.
See all messages in a queue - MMC shows only first 1000 messages.
Reorder - send message to back of queue. Great for poison messages - move it to the back and let pending messages be processed - and deal with poison one latter.
Sort messages by any available field

View serialized .Net objects - if message body is .Net object you can see object's fields in detail.
More message views - with support for different encodings, hex, and XML view. Full body is displayed, not only first 260 bytes.
Edit messages - body and most important fields are editable
Save/load message body
Create test messages - easy creation of messages for testing purposes - body can be loaded from file or entered in text field.
Additional message properties exposed - extension (with detailed view), app specific, acknowledgment info, etc.

Bulk sender - easily send thousands of messages for performance and scalability testing, with adjustable delay after each message.