how can i repeat play a video in a ole control

The issue does not seem to be how to play the video multiple times since that is easy by wrapping the command in a FOR/ENDFOR LOOP, the question would be how would the user input their desired number of times to play.

Since this is in a form, I'd guess that the form has some field which will allow the user to enter their choice.   If so, then it shouldn't be much more complicated than something like:

nPlayTimes = VAL(ThisForm.txtPlayTimes.Text)
FOR nCntr = 1 TO nPlayTimes
     thisform.olecontrol1.url = "c:\VERTIGO.dvr-ms"
ENDFOR

NOTE - I have not tried this, but it most certainly would execute the command as many times as the user wanted.

The remaining issue would appear to be - how to control Synchronous, sequential plays and prevent launching multiple plays all running concurrently.  
I guess that you could put in a Delay loop immediately after the command is called to hold off the next execution for a specified length of time.

Good Luck

There should be an Event that fires when the player has stopped playing. That event should call another URL from the stack.

What I did in these kind of software is to make a CURSOR DBF file which acts like a stack or playlist. You can do it in an array but personally I prefer working with cursors. Quicker, Browseable and easier to access. The user can shuffle, add, delete, randomize, ...

If you're talking about looping Media Player in a web page, try the code below.  Playcount is what you're looking for, and the URL can be a playlist or a media file.

<OBJECT ID="WMPlayer1" Name="WMPlayer1" WIDTH="1000" HEIGHT="1000" CLASSID="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" style="position: absolute; left: 0px; top: 1px">
  <PARAM NAME="PlayCount"           VALUE="2"><!-- set to 9999999999 for infinite loop -->
  <PARAM NAME="AutoStart"           VALUE="True">
  <PARAM NAME="FullScreen"          VALUE="False">
  <PARAM NAME="Mute"                VALUE="False">
  <PARAM NAME="EnableContextMenu"   VALUE="True">
  <PARAM NAME="UIMode"              VALUE="None">
  <PARAM NAME="ShowDisplay"         VALUE="False">
  <PARAM NAME="ShowControls"        VALUE="False">
  <PARAM NAME="ShowTracker"         VALUE="False">
  <PARAM NAME="StretchToFit"        VALUE="True">
  <PARAM NAME="URL"                 VALUE="media/MyPlaylist.wpl">
</OBJECT>

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thanks for all your suggestions, but the probleme is that the user can define that the video will be played until 10 am to 13 am with interval 15m, and i must put repeat the command during this time. It is possible to do this with media payer when i creat the video?
I try before the loop thas Jrbbldrsuggest but i didn´t results.
Thansk

I did a lot of two media players on a foxpro form. Even cross-fading, switching and mixing two playlists and even programming alerts for birthdays and announcements.

the problem is when i want the do the replay of the list. How can i do this?

Windows Media Player Methods
http://msdn.microsoft.com/en-us/library/ms930697.aspx