Hi All,We have implemented secure DPWSusing openssl library. It was working fine with Win Vista properly till now.Since that Win7 has been released, wetested on Windows 7 RTM, butit is always failing. (Though it works fine with self-signed certificates).Can anyone let me know if there has been any change w.r.t security or certificates setupdone on Win7?Thanks,Arun Prasath.

Hi Arun, To make the issue clear, please capture a screenshot on the error you received for the failure. Capture a screenshot ============== 1) Press the Print Screen key (PrtScn) on your keyboard. 2) Click the "Start" menu, type "mspaint" in the Search Bar and Press Enter. 3) In the Paint program, click the "Edit" menu, click "Paste", click the "File" menu, and click "Save". 4) The "Save As" dialogue box will appear. Type a file name in the "File name:" box, for example: "screenshot". 5) Make sure "JPEG (*.JPG;*.JPEG;*.JPE;*.JFIF)" is selected in the "Save as type" box, click Desktop on the left pane and then click "Save". Please use Windows Live SkyDrive (http://www.skydrive.live.com/) to upload the screenshot and share their URLs with us. Thanks.Nicholas Li - MSFT

Hi Nicholas,Thanks for the response.I did not get what is the screen shot which is required. Please let me know.I have added the WinHTTP logs in the error case in thebelow mentioned URLhttp://cid-47f405a7aab93e58.skydrive.live.com/browse.aspx/WinHTTP%20logs?uc=1I could see the Error "ERROR_INSUFFICIENT_BUFFER" in the logs, is this a issue? because it is never observed with Windows Vista.please let me know in case of any details requiredThanks & Regards,ArunPrasath