The App-V client has several log files available. Some of these log files are enabled by default and some of them need to be specifically enabled by an administrator. Each log level can be used for troubleshooting or for analyzing a specific issue. In case of troubleshooting, verbose client logs are the most useful but they have the highest performance impact.
The default location of the msi installation log for the App-V Client itself is the TEMP directory. The file name itself will start with "msi" and will be followed by a random number. The log contains some very basic installation information. Additional detail can be obtained by using MSIEXEC commands to increase the log level.
The App-V Client log file is the log file used most for troubleshooting. It is called “SFTLOG.TXT”. This log file has several log levels:
- Critical
- Error
- Warning
- Information
- Verbose
The default level is “Information”, but when troubleshooting client side issues, you should consider raising the log level to verbose. There are several ways to do this:
From the Client Management Console GUI you can also change the location of the log file, or reset it.
You can execute the following command from a command prompt. You can also use the command prompt to reset the log file, with the /resetlog parameter.
Sftlist.exe /verboselog
You can set the logging level in the registry, using the below key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SoftGrid\4.5\Client\Configuration\LogMinSeverity
To help decrypt the App-V client log file Microsoft have developed a App-V Client Log Parser Utility and this tool can be downloaded from http://www.microsoft.com/downloads/details.aspx?FamilyId=72876C60-3A87-4705-B722-F73EB56219BF&displaylang=en
Patrick Lownds