Browsing Pictures:

soap msg headers:
User-Agent: Xbox/2.0.6690.0 UPnP/1.0 Xbox/2.0.6690.0
Connection: Keep-alive
Host: 192.168.255.4
SOAPAction: "urn:schemas-upnp-org:service:ContentDirectory:1#Browse"
Content-Type: text/xml; charset="utf-8"
Content-Length: 512
soap msg body:

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
   <s:Body>
      <u:Browse xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
<ContainerID>16</ContainerID>
<BrowseFlag>BrowseDirectChildren</BrowseFlag>
<Filter>dc:title,res,res@resolution</Filter>
<StartingIndex>0</StartingIndex>
<RequestedCount>1000</RequestedCount>
<SortCriteria>-upnp:class,+dc:title</SortCriteria>
      </u:Browse>
   </s:Body>
</s:Envelope>

soap msg headers:
User-Agent: Xbox/2.0.6690.0 UPnP/1.0 Xbox/2.0.6690.0
Connection: Keep-alive
Host: 192.168.255.4
SOAPAction: "urn:schemas-upnp-org:service:ContentDirectory:1#Browse"
Content-Type: text/xml; charset="utf-8"
Content-Length: 515

soap msg body:
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
   <s:Body>
      <u:Browse xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
<ContainerID>16</ContainerID>
<BrowseFlag>BrowseDirectChildren</BrowseFlag>
<Filter>dc:title,res,res@resolution</Filter>
<StartingIndex>1000</StartingIndex>
<RequestedCount>1000</RequestedCount>
<SortCriteria>-upnp:class,+dc:title</SortCriteria>
      </u:Browse>
   </s:Body>
</s:Envelope>

soap msg headers:
User-Agent: Xbox/2.0.6690.0 UPnP/1.0 Xbox/2.0.6690.0
Connection: Keep-alive
Host: 192.168.255.4
SOAPAction: "urn:schemas-upnp-org:service:ContentDirectory:1#Browse"
Content-Type: text/xml; charset="utf-8"
Content-Length: 515

soap msg body:
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
   <s:Body>
      <u:Browse xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
<ContainerID>16</ContainerID>
<BrowseFlag>BrowseDirectChildren</BrowseFlag>
<Filter>dc:title,res,res@resolution</Filter>
<StartingIndex>2000</StartingIndex>
<RequestedCount>1000</RequestedCount>
<SortCriteria>-upnp:class,+dc:title</SortCriteria>
      </u:Browse>
   </s:Body>
</s:Envelope>

Searching Music (Xbox use Search rather than Browse for browsing music):

soap msg headers:
User-Agent: Xbox/2.0.6690.0 UPnP/1.0 Xbox/2.0.6690.0
Connection: Keep-alive
Host: 192.168.255.4
SOAPACTION: "urn:schemas-upnp-org:service:ContentDirectory:1#Search"
Content-Type: text/xml; charset="utf-8"
Content-Length: 540

soap msg body:
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
   <s:Body>
      <u:Search xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
<ContainerID>7</ContainerID>
<SearchCriteria>(upnp:class = &quot;object.container.album.musicAlbum&quot;)</SearchCriteria>
<Filter>dc:title,upnp:artist</Filter>
<StartingIndex>0</StartingIndex>
<RequestedCount>1000</RequestedCount>
<SortCriteria>+dc:title</SortCriteria>
      </u:Search>
   </s:Body>
</s:Envelope>

Browsing Video:

soap msg headers:
User-Agent: Xbox/2.0.6690.0 UPnP/1.0 Xbox/2.0.6690.0
Connection: Keep-alive
Host: 192.168.255.4
SOAPACTION: "urn:schemas-upnp-org:service:ContentDirectory:1#Browse"
Content-Type: text/xml; charset="utf-8"
Content-Length: 579

soap msg body:
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
   <s:Body>
      <u:Browse xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
<ContainerID>15</ContainerID>
<BrowseFlag>BrowseDirectChildren</BrowseFlag>
<Filter>dc:title,res,res@protection,res@duration,res@bitrate,upnp:genre,upnp:actor,res@microsoft:codec</Filter>
<StartingIndex>0</StartingIndex>
<RequestedCount>1000</RequestedCount>
<SortCriteria>+upnp:class,+dc:title</SortCriteria>
      </u:Browse>
   </s:Body>
</s:Envelope>