Ideally, when deploying Distribution Points, you really want to use Windows 2008 R2 or higher, as this OS supports autoconfiguration of WDS, IIS, etc.
But of course, in some situations this isn’t feasible.
First, install all Service packs, the machine should be fully up to date.
Then, add the SCCM Server or install account to the local Administrators on the Windows 2003 machine
Then, install IIS and WDS (if using PXE).
Then, install the Windows Server 2003 Service Pack 2 Support Tools
Reboot
Add the Server to the hierarchy in sccm and Monitor dismgr.log
You may Encounter These Errors in distmgr.log if you forgot to install the Support Tools, or if your Firewall blocks WMI:
CWmi::Connect() failed to connect to \\DPFQDN\root\default. Error = 0x80070005 6/2/2015 12:11:13 PM 7348 (0x1CB4) STATMSG: ID=2391 SEV=E LEV=M SOURCE="SMS Server" COMP="SMS_DISTRIBUTION_MANAGER" SYS=SITESERVERFQDN SITE=EU1 PID=3232 TID=7348 GMTDATE=Tue Jun 02 10:11:13.249 2015 ISTR0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" ISTR1="" ISTR2="" ISTR3="" ISTR4="" ISTR5="" ISTR6="" ISTR7="" ISTR8="" ISTR9="" NUMATTRS=1 AID0=404 AVAL0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" 6/2/2015 12:11:13 PM 7348 (0x1CB4) GetWMIObject - Failed to connect to root\default on ["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\. Error code: 0x80070005 6/2/2015 12:11:13 PM 7348 (0x1CB4) Translated server name DPFQDN to DOMAIN\DPFQDN. 6/2/2015 12:11:16 PM 7348 (0x1CB4) CWmi::Connect() failed to connect to \\DPFQDN\root\default. Error = 0x80070005 6/2/2015 12:11:16 PM 7348 (0x1CB4) STATMSG: ID=2391 SEV=E LEV=M SOURCE="SMS Server" COMP="SMS_DISTRIBUTION_MANAGER" SYS=SITESERVERFQDN SITE=EU1 PID=3232 TID=7348 GMTDATE=Tue Jun 02 10:11:16.981 2015 ISTR0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" ISTR1="" ISTR2="" ISTR3="" ISTR4="" ISTR5="" ISTR6="" ISTR7="" ISTR8="" ISTR9="" NUMATTRS=1 AID0=404 AVAL0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" 6/2/2015 12:11:16 PM 7348 (0x1CB4) GetWMIObject - Failed to connect to root\default on ["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\. Error code: 0x80070005 6/2/2015 12:11:16 PM 7348 (0x1CB4) Translated server name DPFQDN to DOMAIN\DPFQDN. 6/2/2015 12:11:17 PM 7348 (0x1CB4) CWmi::Connect() failed to connect to \\DPFQDN\root\SCCMDP. Error = 0x80070005 6/2/2015 12:11:17 PM 7348 (0x1CB4) STATMSG: ID=2391 SEV=E LEV=M SOURCE="SMS Server" COMP="SMS_DISTRIBUTION_MANAGER" SYS=SITESERVERFQDN SITE=EU1 PID=3232 TID=7348 GMTDATE=Tue Jun 02 10:11:17.292 2015 ISTR0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" ISTR1="" ISTR2="" ISTR3="" ISTR4="" ISTR5="" ISTR6="" ISTR7="" ISTR8="" ISTR9="" NUMATTRS=1 AID0=404 AVAL0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" 6/2/2015 12:11:17 PM 7348 (0x1CB4) GetWMIObject - Failed to connect to root\SCCMDP on ["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\. Error code: 0x80070005 6/2/2015 12:11:17 PM 7348 (0x1CB4) DPID 16777513 - NAL Path ["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\ , ServerName = DPFQDN, DPDrive = , IsMulticast = 0, PXE = 1, RemoveWDS = 0 6/2/2015 12:11:53 PM 3148 (0x0C4C) Translated server name DPFQDN to DOMAIN\DPFQDN. 6/2/2015 12:11:54 PM 3148 (0x0C4C) CWmi::Connect() failed to connect to \\DPFQDN\root\CIMv2. Error = 0x80070005 6/2/2015 12:11:54 PM 3148 (0x0C4C) STATMSG: ID=2391 SEV=E LEV=M SOURCE="SMS Server" COMP="SMS_DISTRIBUTION_MANAGER" SYS=SITESERVERFQDN SITE=EU1 PID=3232 TID=3148 GMTDATE=Tue Jun 02 10:11:54.335 2015 ISTR0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" ISTR1="" ISTR2="" ISTR3="" ISTR4="" ISTR5="" ISTR6="" ISTR7="" ISTR8="" ISTR9="" NUMATTRS=1 AID0=404 AVAL0="["Display=\\DPFQDN\"]MSWNET:["SMS_SITE=EU1"]\\DPFQDN\" 6/2/2015 12:11:54 PM 3148 (0x0C4C) DPConnection::ConnectWMI() - Failed to connect to DPFQDN. 6/2/2015 12:11:54 PM 3148 (0x0C4C)