1.Create a file, with the content.
username=WindowsUsername password=WindowsPassword domain=DomainNameOrWorkGroup
2. For security, assign the permission 400.
Example
mkdir /etc/wmic vi /etc/wmic/Win20008.txt chmod 400 /etc/wmic/Windows2008R2srv.txt
cat /etc/wmic/Windows2008R2srv.txt username=zabbixmonitor password=SuperPassword domain=WORKGROUP
Usage:
wmic -A /etc/wmic/Windows2008R2srv.txt //192.168.123.58 "select * from Win32_ComputerSystem"