Admin api - correct url syntax to getUsers for an event instance.

Question

I'm trying to use the admin api to call the function getUsers() and I'm not sure of the correct URL syntax. I want to return the number of users currently connected to an event instance. Could someone provide an example of what the URL connection string would look like?
I tried the following syntax
http://localhost:1111/admin/getUsers?auser=USER&apswd=PASSWORD&appInst=livepkgr/_definst_/ myEvent
but it returns this error message.
<?xml version="1.0" encoding="UTF-8"?>
-<result>
<level>error</level>
<code>NetConnection.Admin.CommandFailed</code>
<timestamp>10/26/2012 8:06:23 AM</timestamp>
</result>
>>>>>>>>>>>>>>>>>>>>>>>>
I can successfully use the ping command: http://localhost:1111/admin/ping?auser=USER&apswd=PASSWORD
<?xml version="1.0" encoding="UTF-8"?>
-<result>
<level>status</level>
<code>NetConnection.Call.Success</code>
<timestamp>10/26/2012 8:12:51 AM</timestamp>
</result>
In my FMS.ini file I do have  USERS.HTTPCOMMAND_ALLOW = true
In my USERS.xml file I have
<HTTPCommands>
            <Enable>${USERS.HTTPCOMMAND_ALLOW}</Enable>
            <Allow>ping,getUsers,getUserStats,getServerStats</Allow>
            <Deny></Deny>
            <Order>Deny,Allow</Order>
</HTTPCommands>
Thanks!

Answer 1

I found the problem. I wasn't putting quotes around the application/instance name value.
http://localhost:1111/admin/getUsers?auser=USER&apswd=PASSWORD&appInst ="livepkgr/_definst_""
Did the trick. Question though will this identify the number of client connections over http in addition to rtmp?
Thanks Again!