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.NET 
Today I gave a session at SDC about Practical windows workflow foundation and a session on advanced activity development where I explained the way I build te WCF activities I published at codeplex.
I promised to put up my slides and code samples on my blog, so here they are:
slides for the Practical Workflow Foundation Session: here
demos:
01- Show how to use Workflow queue's: here
02 – Show how Activity Execution context spawns can lead to problems and how to solve them (By binding properties to parent workflow): here
03 – How to build a custom tracking service: here
04 – Show WCF activities to integrate with WCF: here
05 – How to unit test Workflows with the Memory persistence provider and XML File tracking service: here
You can find the Memory persistnce provider and the XMLFileTracking service at codeplex
Demo's and samples for the advanced activity development session:
See Codeplex code for all the demos and code
The slides : here
During this session I promised I would put the registry key setting on my blog to make the temporary generated workflow files are kept when Activity code generation occurs for a certain workflow. The registry key is the following:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftNET Framework SetupNDPv3.0SetupWindows Workflow FoundationKeepTempFiles (DWORD) and set it to 1
Tomorrow I will do a session on Practical Team Foundation Server, and the slides I have for this session can be found here.
Have fun with them,
Cheers,
Marcel
Follow my new blog on http://fluentbytes.com