.wmv video files not playing in FormsAuthentication.

Hi All,

Issue is .wmv video files not playing in FormsAuthentication. for public .wmv files working fine.

I have a forms authentication for .wmv files , i was used the below code in global.asax file, its working fine in local m/c through Visualstudio2010.

when i am  uploading to server (IIS7) sqlserver2005,i given .wmv file direct link(http://domainname/partner-files/videos/en/Content-in-a-Box-Webinar-20110713-1502-1.wmv) in browser its redirecting to login page then after username password given, its giving the following error

"Windows Media Player encountered a problem while playing the file. For additional assistance, click Web Help."

can any one pls help me on this issue.