I'm not sure this will do the trick but it seems very likely.
Required user accounts for installation of DB2 servers (Windows)
If you are installing on Windows NT, Windows 2000, Windows XP, or Windows
Server 2003, you require the following DB2 server user accounts:
- an installation user account and
- one or more setup user accounts
- a DB2 Administration Server (DAS) user account
- a DB2 instance user account.
The installation user account must be defined prior to running the DB2 Setup
wizard. The setup user accounts can be defined prior to installation or you
can have the DB2 Setup program create them for you.
All user account names must adhere to your system naming rules and to DB2
DB2 enhanced security on Windows
DB2 now offers enhanced Windows security. You can install DB2 with a user
ID, but unless that user ID belongs to either the DB2ADMNS or DB2USERS
group, that user ID won't be able to run any DB2 commands.
The DB2 installer creates these two new groups. You can either use a new
name or accept the default names.
To enable this security feature, select the Enable operating system security
check box on the Enable operating system security for DB2 object panel
during the installation of DB2. Accept the default values for the DB2
Administrators Group field, and the DB2 Users Group field. The default group
names are DB2ADMNS and DB2USERS. If there is a conflict with existing
group names, you will be prompted to change the group names. If required,
you can specify your own values.
DB2 server user accounts
Installation user account
A local or domain user account is required to perform the installation. The
user account must belong to the Administrators group on the machine where
you will perform the installation.
For domain accounts, to verify userIDs on the DB2 server, the installation
userID must belong to the Domain Administrators group on the domain where
the accounts are going to be created.
You may also use the built-in LocalSystem account to run the installation for
all products except DB2 UDB Enterprise Server Edition.