Hi everybody. I tried to use MS's examples of WMRM SDK10 (we have win2000 server with WMRM SDK10) and I've got "Wmrmobjs.WMRMChallenge.1 error '80070057' The parameter is incorrect." in batchpackage_licgen.asp But when I turn off the error handler by adding "On Error Resume Next" - everything works OK but only on XP OS (WMP10). When someone is trying to play WMV with WMP12 (on Win7) it doesn't work... The "play" button is disabled. Here, take a look: http://clip2net.com/clip/m13398/1267029490-clip-13kb.jpg I catched HTTP headers between client and server and I've got next: .... <LICENSERESPONSE><REVOCATION type=\"WMDRMNET\">...[BASE64CODE]...</LICENSE></LICENSERESPONSE> ... Please, need your help with that. How to make it works? Who can help me with DRM problems?

Hi Rolikoff, I see that your problem is more towards programing, there is a dedicated forum to handle programing related questions. Please use the below link to post your question. http://social.msdn.microsoft.com/Forums/en/categories/