Configure Bits

When transferring delta information from the server to the client, you may have the Web Service use either Background Intelligent Transmission Service (Bits) or UncCopy. Bits is a Microsoft technology that is used to transmit the delta file to the client. If the transfer is interrupted, the Bits technology picks up where it left off and completes the transfer. If you wish to use bits, the Replication Server must use IIS6. UncCopy moves the delta file to the client. However, should the transmission be interrupted, the delta will NOT be copied to the client and the update will have to be performed again. UncCopy may be used with a server running IIS5 or IIS6.

If you choose to use UncCopy to transfer delta files, no further web configuration is necessary. If you wish to use Bits to transfer delta files from the server to the client, you must perform the following additional configuration.

First, you will need to enable the Bits extension.

From the Control Panel, select Add/Remove Programs.
Click the Add/Remove Windows Components button in the Add/Remove Programs window.
Browse to and select Application Server in the Components list. Click the Details button.
Browse to and select Internet Information Systems (IIS) in the Components list. Click the Details button.
Select the Background Intelligent Transfer Service (BITS) Server Extension checkbox and click OK.
Next, enable the ASP.NET extension on your web server.
On your web server, right-click My Computer and select Manage.
In the tree at the left, expand the Services and Applications folder.
Expand Internet Information Service (IIS) Manager.
Select Web Service Extensions and click the Extended tab in the window at the right.

Figure 1
In the Web Service Extensions pane, select the ASP.NET extension and click Allow to enable it.
Select BITS Server Extensions and click Allow to enable it.
Close the Computer Management window.