This file is a harmful and undesirable program. Probably virus. It's recommended to delete it.
What is tsl.exe Windows startup process
File name: tsl.exe
Program name: Tsl
Description: Uploader-R adware
Information added by: redbaron at 31 March 2008
Hint: If tsl.exe file is a virus or trojan, we recommend to use a antivirus software or registry cleaner.