vb.net - webservice to WCF -

we had developed webservice in vb.net,framework 2.0. need rewrite websevice in wcf framework 3.5. please provide guidance regarding , there many othersystems consuming our webservice url. conversion have impact on source system or involve build activity source system consume url developed wcf method? please provide sample example have better understanding on this. thanks!

a few thoughts.

case 1: webservice having consumers , want rewrite service , not disturb consumers.

in case using basichttpbinding end point regular wcf service implementation do. can find many references build wcf service basichttpbinding. fit need.

follwoing links may helpful you.

http://msdn.microsoft.com/en-us/library/aa480190.aspx

http://msdn.microsoft.com/en-us/library/ms731361(v=vs.90).aspx

case 2: if want rewrite service, , acceptable have changes in consumers, worthy consider following points.

endpoint choice

a. if preference keep service interoperable (i.e. service serve different platforms), soap based endpoints help. basichttpbinding, wshttpbinding, etc.

b. if consumers in windows platform, , prefer better performance soap based bindings, nettcpbinding based endpoints help.

c. if consumers in same machine, netnamedpipe can choice.

service design

the service design offers go lot of combination of following.

a. choice of deciding service instance's life cycle.

b. choice of concurrency.

c. choice of sessions, , enforcing order in service has called (prefered specific designers)

d. choice of having or not having transactions.