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Thursday, October 29, 2009 11:07 AM

MSMQ messages using HTTP just won't get delivered #17

If you are having trouble sending transactional messages from a Windows XP client, bear in mind that the format of the Mapping file you have created is going to be different from that used in later operating systems. The differences are discussed in Message
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Wednesday, October 21, 2009 5:22 PM

Troubleshooting MSMQ over HTTP - nothing in the web server log files?

If you are scratching your head because the files in the %windir%\system32\LogFiles\W3SVC1 directory have no entries for the incoming MSMQ messages then you need to tick two boxes: Open up Computer Management Navigate to: Services and Applications Internet
Posted by JohnBrea | 0 Comments
Tuesday, July 14, 2009 4:37 PM

MSMQ and Federal Information Processing Standard (FIPS)

The United States Government has a couple of standards that provide a benchmark for implementing cryptographic software. These are: Federal Information Processing Standard 140-1 (FIPS 140-1) which was published in January 1994, and is superceded by...
Posted by JohnBrea | 0 Comments
Wednesday, May 27, 2009 6:19 PM

Trying to make MSMQ licensing seem less complicated

Normally licensing questions are very few and far between which is why I don't think I've posted about the subject before. On the MSMQ newsgroups, someone posted that they had: "observed that the number of users capable of connecting to such queue depends
Posted by JohnBrea | 0 Comments
Saturday, May 16, 2009 3:12 PM

MSDTC and MSMQ - Brothers in Arms

I've just responded to a newsgroup poster asking how to avoid using MSDTC on a cluster. Their applications weren't using distributed transactions and they didn't want to have to provide another shared disk just for MSDTC. On a cluster, there is only one
Posted by JohnBrea | 0 Comments
Thursday, March 19, 2009 5:25 PM

Load-balancing MSMQ - a brief discussion

There are several ways of load balancing MSMQ with varying levels of support and efficiency, including: A hardware load balancer (load-balancing on the wire) DNS Round Robin (load-balancing at the outgoing queue) Software-implemented Round Robin (load-balancing
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Thursday, February 26, 2009 3:07 PM

Difference between Path name and Format name when accessing MSMQ queues

For beginners to MSMQ development, the fact that there are FIVE ways of addressing an MSMQ queue is a real pitfall. Many hours will be lost trying to work out why a seemingly perfect address keeps returning errors. From MSDN: Referencing a Queue To perform
Posted by JohnBrea | 22 Comments
Friday, February 06, 2009 1:55 PM

Optimising performance of MSMQ over HTTP

Here are a couple of registry values you can tweak if you are sending messages over a high latency network like the Internet. The first two are for setting the TCP receive window which is the number of bytes a sender can transmit without receiving an
Posted by JohnBrea | 0 Comments
Tuesday, January 20, 2009 11:41 AM

Unable to install MSMQ HTTP Support - 0x80070003

You may see the following error message when you are trying to install HTTP support for MSMQ messaging: "The Message Queuing IIS extension /LM/W3Svc/1/Root/MSMQ cannot be created. Message Queuing will not be able to receive HTTP Messages. Error Code 0x80070003
Posted by JohnBrea | 2 Comments
Wednesday, December 17, 2008 12:31 PM

MSMQ messages using HTTP just won't get delivered #16

If you are sending messages over HTTP then there is a chance you may be behind a proxy server which prevents you making a direct connection to the destination server. This is no big deal - Internet-enabled products such as Internet Explorer and MSMQ always
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Wednesday, December 17, 2008 11:52 AM

MSMQ messages using HTTP just won't get delivered #15

This sounds obvious but make sure port 80 is open on the firewalls and routers between sender and receiver. It's easy to get bogged down in trying to work out why MSMQ isn't sending, such as checking if acknowledgements are getting lost and so on. In
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Monday, December 15, 2008 3:15 PM

Sending MSMQ messages over HTTP to a web server not listening on Port 80

Luckily this isn't difficult. The address needs to be modified just like using Internet Explorer to brows a web site that's listening on a different port so just insert the port number after the server name. For example, here's the address where the destination
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Friday, September 12, 2008 10:34 AM

Sending encrypted MSMQ messages

MSMQ has moved out of private corporate LANs and now companies send messages over the Internet. Data security should therefore be top of the to-do list for anyone wanting to follow this route. The first consideration is what do you actually need to encrypt?
Posted by JohnBrea | 0 Comments
Monday, June 09, 2008 5:07 PM

MSMQ over HTTP is a push-only technology

If you are designing a system that uses MSMQ over HTTP then you need to take into account that you can only push messages around the system and not pull them. So you can send from Machine A to Machine B but you can't do a similar remote receive from B
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Wednesday, June 04, 2008 12:45 PM

MSMQ messages using HTTP just won't get delivered #14

Another KB article has been published for MSMQ over HTTP: 941754 Incoming messages may be rejected by the queue manager on the cluster after you configure the clustered instance of Message Queuing to use HTTP messaging in Windows Server 2008 The principle
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