Citrix Systems Citrix MetaFrame Application for Windows 1.8 - Manual (Page 105)

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5. In the User menu, click Copy.
6. Enter a unique name in Username and click Add.
Though not a requirement, it is best to use names of the form Anonxxx,
following the pattern of the existing anonymous users. (You can use any name
as long as the user is part of the Anonymous group.)
7. Repeat to add multiple users.
8. After the last anonymous user is added, click Close.
9. Exit User Manager for Domains.
The new user accounts are not available until the MetaFrame server is
rebooted.
Use the following procedure to change settings for anonymous users.
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To modify anonymous user settings
1. Run User Manager for Domains.
2. In the User menu, click Select Domain.
3. Type the computer name of the MetaFrame server in Domain and click OK.
4. Select the anonymous users.
5. In the User menu, click Properties.
6. Change the properties as desired.
7. Click OK in the User Properties dialog box.
8. Exit User Manager for Domains.
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An explicit user is any conventional MetaFrame user who is not a member of the
Anonymous group. Explicit users are created and maintained with User Manager
for Domains. Explicit users have a “permanent” existence: their desktop settings,
security settings, etc. are retained between sessions for each user in a user profile.
Explicit users can be of any user class and are generally created for a specific
purpose.
Never assign an explicit user to the Anonymous group.
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