Lync Server 2010 Logging Tool: View Log Files


Topic Last Modified: 2011-01-26

Files created by the Microsoft Lync Server 2010 Logging Tool are saved as event trace log (.etl) files. These are binary files that you cannot read by just opening them in a text editor such as Notepad. To view the log files created by Logging Tool, click View Log Files from the main Logging Tool window to open the View Log Files dialog box.

View Log Files

From the View Log Files dialog box you can create, view, and save readable text files from the log files that you have generated.

Component Log List

In View Log Files, you see a list of components that have log files associated with them. The list is generated from the log files located in the folder specified in Log File Folder in the main Logging Tool dialog box. When the View Log Files dialog box opens, all files are selected. Clear the check box next to any components for which you do not want to view logs. The logs for all selected components will be placed into one text file.

Output File

By default the output file for the text files is C:\Users\<userName>\AppData\Local\Temp\OCSLogger_<dateTime>.txt. For example, if user Ken Myer created an output file at 1:22 PM on December 18, 2010, the default file would be C:\Users\kenmyer\AppData\Local\Temp\OCSLogger_2010_12_18_13_22.txt. You can change the file path by typing the new file name or by clicking Browse to specify a different file location.


If you want to save the log file in text format without opening it, click Browse. In the Output File Path dialog box, specify the file path and name under which you want to save the file and then click Save. You can also open the file and then save it by clicking View in the View Log Files dialog box and then saving the file that appears in Notepad (by default). However, if the file is large (over 20 MB) we recommend that you first save it from the Output File Path dialog box and then open it manually with a more robust text editor such as WordPad.

Package For PSS

Click Package For PSS to create a cabinet (.cab) file. This is a compressed file that can be sent to Microsoft Customer Service and Support (formerly known as Microsoft Product Support Services or PSS) for troubleshooting.


To use Package For PSS, you must have the file cabarc.exe installed on the computer. This file is included with the Windows Support Tools for Windows Server 2003 and Windows XP.


Click View to open the log file in your default text editor, typically Notepad. You can view (and edit) the contents of the file, and you can also save the text file.