[INSTALLDIR]\sbin\myri_dmesg.ps1 is a powershell script in the Windows Sniffer10G 2.0 software distribution which extracts logging information from the Windows Logs and prints them to stdout. It will show whether the Sniffer10G license is valid, which driver is loaded, and any error statements. This script must be run as administrator.
If you cannot use powershell, inspect the Event Viewer -> Windows Logs for error messages related to the Sniffer10G software.
If an issue is encountered with installation, usage, or performance, please send the output of myri_dmesg.ps1 to Myricom Technical Support (help@myricom.com). The output of this script may contain vital information to speed the resolution of the issue.