how to write a WITSML client in C#

how to write a WITSML client in C#:

option #1 - Use the open source Energistics devkit:
http://www.energistics.org/standards-devkit

option #2 - roll your own
How-to on making your own WITSML client:
http://wiki.cswitsml.googlecode.com/hg/WITSMLClientFromScratch.wiki

ref: The WITSML 1.3.1 standard XSDs (need this for parsing/building messages to WITSML Server)
http://witsml_data_schema_v1311.zip

ref: The Energistics API specifications:
http://www.energistics.org/drilling-completions-interventions/witsml-standards/version-history