The configuration program writes detailed information to a configuration log file which by default is located in the temp directory of the computer running BizTalk Server. To determine the folder that is specified by the TEMP environment variable open a command prompt on this computer, type the following command, and then press ENTER:
echo %TEMP%
The configuration log file contains a summary of the configuration steps performed, as well as diagnostic information about any failures that may occur during the configuration process. If a configuration error occurs, open the configuration log in a text editor such as Notepad and check the log file for possible causes of the error.