Answer: First you will need to get out of the program. Then go to the drive where you have installed Sales Tax, either your C drive or your network drive. Find the SLSTAX16 folder (or 15, depending on what year you are using), open that and then find the file st16.ini which if you are looking by type is a Configuration Settings file. Double click to open the file in Notepad. Inside you will find headers for different sections. For example the first line is [Database]. Find the one that is [General Setup]. Under that the 3rd line is the following: ; TerminalService = y. Remove the ; from the line and save the document.