Windows 7 Sleep question something weird going on. Help

Hi all new here and nice to be a member.

I was wanting some help for windows 7 sleep option as theres something weird going on.

I have my windows 7 server computer set to go to sleep after 20 min and

1. If i power the computer up from standby and dont touch it it goes into sleep in 20 min (works)
2. if i play a movie which uses windows 7 to windows 7 SMB share for 30 min and stop the movie the server will turn off after 5 min (not working). I would of thought it would do this after 20 min of inactivity

so i tested this

3. if i play a movie which uses windows 7 to windows 7 SMB share for 10 min and stop the movie the server will turn off in 10 min.

there seems to be somthing happening where if the computer is used after the 20min sleep setting and then theres no activity on the server it will turn off 5min after the movie has stoped.

if i stop the movie 10 min before the sleep timer it will stop on for 10min untill it goes to sleep.

is there another setting or somthing that tells the computer to go to sleep after 5min of inactivity after the 20min mark of the sleep setting.

I just dont get why its doing this

any help

thanks

Hi there thanks for responding.

I have already tried that one I have it set to don't sleep when streaming multimedia. That's not the problem the computer does not enter sleep mode when streaming movies to the htpc which is right. the problem is when I stop playback of movies on my htpc the server shuts down 5 min after I stop the movie but only when i have played a movie past the 20min mark as my sleep settings are set to sleep at 20min.

I would of thought it would not sleep after I stoped the movie until 20min pass of inactivity not 5 min. But like I said it only does this if you have watched a movie past the 20min mark.

Thanks

Anyone?