invalid pxe server list format - Altiris

I restarted our Altiris server and our PXE services wouldn't come up. Trying to start them resulted in:

File not found

I then checked the path listed in the service and found that, indeed, our PXE files where not in the location that the service was trying to start them in:

F:\Program Files\Altiris\eXpress\Deployment Server\PXE

The missing files were:

PXEService.exe

PXEmtftp.exe

PXEMgr.exe

PXECfgService.exe

They were located here:

F:\Program Files\Altiris\eXpress\Deployment Server\PXE\MasterImages\UpSrv\51

I don't know why it wasn't looking for them in the longer path, but I copied those files to the directory it wanted (\PXE)

I then attempted to start the services and they all started correctly.

Then I attempted to PXE boot one of my VM's. This failed with an error stating:

"invalid pxe server list format"

Attempting to troubleshoot this, I used procmon and saw that it was downloading bstrap.0 successfully then generating the error. I enabled logging for the PXE Server in Altiris and set the logging level for "Errors". I then restarted all the Altiris services. When I restarted the PXE Server service, I got this error message:

E [11:32:26 05/03] (3480): Enter: SetupDHCP(...)

E [11:32:26 05/03] (3480): SetupDHCP: Auto Detect, configure option 60.

(3480)Failed to load Dll Library.

(3480)Failed to load Dll Library.

(3480)Failed to load Dll Library.

(3480)Failed to load Dll Library.

I then fired up Process Monitor and did a file trace while restarting PXE Server. It informed me it could not find the following files:

I then copied those missing DLL's from the F:\Program Files\Altiris\eXpress\Deployment Server\PXE\MasterImages\UpSrv\51 directory to the F:\Program Files\Altiris\eXpress\Deployment Server\PXE directory and restarted the PXE Server Service.

I then attempted to PXE boot my VM and lo and behold, it worked again.