Error Message:

The DNS server was unable to open file filename for write. Most likely the file is a zone file that is already open. Close the zone file and re-initiate zone write.

Explanation:

You might not have permission to access this file.

User Action:

Check the permissions on the specified file: 1) In Windows Explorer, go to the Systemroot \System32\Dns folder. 2) Right-click the specified database file, and then click Properties . 3) Click the Security tab, and then click Permissions . 4) Verify that you have the proper permissions to read, write, and then run the file.