WCF Transactions: WSAtomicTransactionOctober2004 vs. WSAtomicTransaction11

Question

WCF has three transaction protocols: OleTransactions, WSAtomicTransactionOctober2004 & WSAtomicTransaction11

OleTransactions are the Windows specific OleTx protocol, but both the other two are just listed as the implementation of the WSAT protocol.

So there must be a difference between the 2004 & 11 options?

Only thing I can GUESS is

2004 = November 2004 spec
11 = August 2005 spec (seems odd, since this is version 1.0 and the name implies 1.1)

score 3 · Answer 1 · answered Mar 29 '12 at 14:50

3

For .net <=3.0, use WSAtomicTransactionOctober2004 If you use COM+, use OleTransactions otherwise, use WSAtomicTransaction11

answered Mar 29 '12 at 14:50

Chris

So you saying the only difference between 2004 & 11 is that 2004 was supported in .NET 3.0 and 11 was added in 11? Seems silly to have just that difference, so what are the differences between the two? – Robert MacLean Mar 29 '12 at 15:01
All I can say is where I use(d) them - this was also backed up in some 70-513 revision guides I've used too. The exact differences - I'm not too sure sorry. Nor is google, by the looks. – Chris Apr 03 '12 at 06:24

Lieven Keersmaekers · Answer 2 · 2012-07-19T12:36:29.690

2

The difference between the three types can be summed up as follows

WSAtomicTransactionOctober2004

WSAtomicTransaction11

Standard for HTTP transactions.
Required for transactions to Web services built on third-party technologies.
Can be used where the server and client are written using WCF and using TCP or named pipes but it is not the preferred method.

OleTransaction

Standard for TCP and named pipe transactions where the server and client are written using WCF.
To use COM+ transactions that use RPC and DTC.
Can't be used for transactions to Web services built on third-party technologies.
Can't be used with HTTP.

edited Jul 19 '12 at 12:36

answered Jul 18 '12 at 19:22

THanks for the answer but same point as I had with @chris answer: So you saying the only difference between 2004 & 11 is that 2004 was supported in .NET 3.0 and 11 was added in 11? Seems silly to have just that difference, so what are the differences between the two? – Robert MacLean Jul 19 '12 at 11:35
@RobertMacLean - First thing that came to mind and kind of confirmed from the links you've provided is that `WSAtomicTransactionOctober2004` only supports `SOAP 1.1` while `WSAtomicTransaction11` also supports `SOAP 1.2`. Note that I am in the process of learning WCF myself so you should take this with a serious grain of salt. – Lieven Keersmaekers Jul 19 '12 at 12:38

2 Answers2