Specifications

4.0 Configuring COM/DCOM
When configuring COM/DCOM, the first issue to consider
in this topic is Windows
®
NT/Windows
®
2000 Domains
versus Workgroups.
• A domain is a typically large organizational group
of computers that network administrators maintain
and control which machines have membership.
• A workgroup, on the other hand, does not require
a network administrator to create it or control
membership. It just requires a person who is an
administrator of the PNA Series network analyzer
to declare the workgroup name and to declare the
analyzer a member of the workgroup. The PNA
Series analyzers are shipped from Agilent
configured as members of a workgroup named
WORKGROUP.
The analyzer cannot be configured as both a domain
member and workgroup member; it must be one or the
other. By default, PNA Series analyzers are shipped from
Agilent such that everyone has permission to launch
and access the PNA Series application via COM/DCOM.
The term everyone refers to a different range of users
depending upon which type of group (domain or work-
group) the network analyzer is a member of. For a work-
group, Everyone includes only those users who have
been given logon accounts on the analyzer. For a
domain, Everyone includes that same group of users,
and also includes those people who have permissions to
logon to the domain but perhaps do not have a logon
account on the analyzer. In general, once a PNA Series
analyzer has joined a domain with permission from a
network administrator, it tends to make network connec-
tions to the network analyzer easier for those people
who have domain logon accounts. For example, with the
Agilent default setting of everyone having permission to
launch/access the PNA Series application, anyone who is
logged into the domain from their PC will then automati-
cally have the necessary permissions to connect to the
analyzer using DCOM. Recall that when the network
analyzer is a member of a workgroup instead of a
domain, only those people who have logon accounts on
the analyzer can connect using DCOM from a PC.
4.1 Procedure
4.1.1 Configure the PNA Series network analyzer to
provide COM/DCOM access to the PNA application
for the user
From the PNA Series Network Analyzer:
NOTE: The following steps need to be performed when
it is desired to give specific users (not Everyone)
COM/DCOM permissions.
Remember, both your PC and the analyzer must be con-
nected via the LAN. Additionally, the network analyzer’s
C drive must be mapped to your PC as shown in section
2.2.
1) Click the Windows Start button, select Run, type
dcomcnfg into the input box, and click OK.
2) The Distributed COM Configuration
Properties window should now be displayed. Click
on Agilent PNA Series in the Applications list,
then click the Properties button.
3) In the Agilent PNA Series Properties window,
click the Location tab. The Run application on
this computer checkbox should be checked.
4) Click the Security tab. Click the Use custom
access permissions and Use custom launch
permissions radio buttons to select those options.
Click the Edit... button next to Use custom
access permissions.
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