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Error message 1

Error message 2

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To resolve this issue, follow these steps on the first computer:

1.	Click Start , and then type policy in the Start Search box.
2.	Right-click Local Security Policy, and then click Run as administrator.
3.	Expand Local Policies.
4.	Click Security Options.
5.	In the Policy list, double-click Network Access: Named Pipes that can be accessed anonymously.
6.	On the Local Policy Setting tab, type the name of the second computer. This is the Server2_name name in the error message that you received.
7.	Click OK.
8.	Double-click Network access: Let Everyone permissions apply to anonymous users.
9.	Click Enabled, and then click OK.

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Windows Vista lets anonymous users perform certain activities, such as enumerating the names of domain accounts and the names of network shares. For example, Windows Vista lets an administrator grant access to users in a trusted domain that does not maintain a reciprocal trust. By default, the Everyone security identifier (SID) is removed from the token that is created for anonymous connections. Therefore, permissions that are granted to the Everyone group do not apply to anonymous users. Anonymous users may access only those resources for which the anonymous user has been explicitly granted permissions.

By default, the Network access: Named pipes that can be accessed anonymously policy setting is None. This security setting determines whether named pipes have attributes and permissions that enable anonymous access. If the Network access: Named pipes that can be accessed anonymously policy is enabled, the Everyone SID is added to the token that is created for anonymous connections. In this case, an anonymous user may access any resource for which the Everyone group has been granted permissions.

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