The essential ones are as follows for correct operation of the workstations.
You may also find KDS Display loading depending on your setup.
You may find that the Application Loader will stall on any one of these, the most common being MDSHosts.xml.
MDSHosts.xml contains IP address and Hostname information for the server and all workstations so its essential for operation.
On WS4, WS4LX, WS5 model workstations its located on the compact flash drive in cf\micros\etc
On Win32 workstations its located in c:\micros\common\etc.
Same applies for all the .xml files above.
Workstations should be kept up to date automatically with these files and should be downloaded upon installing ops using CAL.
If you find the Application Loader stalling there are a few simple steps you need to take.
Quick Fix: Transfer a copy of the MDSHosts.xml to the workstation. It is located on the server under D:\micros\common\etc and needs to be copied to the workstation. See above for the correct directory.
Long Term Fix:
Step 1) Make sure the MDSHosts.xml has a good copy on the server. It should be located in D:\micros\common\etc
Check the last modified date. It should be fairly recent ie. a few days. Reload the database via the Micros Control Panel (reload not restart). If the modified date has not updated and the workstation still not starting then proceed to step 2.
Step 2) Force the database to create a new copy. Open services.msc and restart the following services:
Micros Distributed Services ManagerMicros DB Update Service
Step 3) Reload the database via the Micros Control Panel. ( reload not restart ). The last modified date of the file should have updated to the current date/time.