■About the error
　We confirmed from past cases that "java.io.FileNotFoundException: <Filename> (Access denied.)" is caused by the following 3 factors:
　1．If you do not have access to the file
　2．If you do not have access to the directory
　3．If you attempt to open a directory as a file

■About Thumbs.db
　The Thumbs.db file is not included in the DataSpider installer. In addition, it is not created by the DataSpider.
　*Thumbs.db is thumbnail information of an image created by the OS from a file name.

■Specification
　At the startup, DataSpider Studio compares the .application.client file with the module on Server and synchronizes the module if there is a difference. If the file does not exist, the process is similar to the initial synchronization.

■Probable cause
　Based on the error output to client.error.log and the above specifications, it is possible that the error occurred because there is no access permission for Thumbs.db that was not created by DataSpider upon the module synchronization.

■Workaround
　▼Delete Thumbs.db
　　Please delete the Thumbs.db and confirm that DataSpider Studio can be started. Also on the Server side, it is necessary to check if the Thumbs.db exists. If it exists, please set not to create it.
　　*Please refer to the OS side about how to delete the Thumbs.db.