If yours does not you can download one. You can download one for Windows computers at Winzip's website or one for Macintosh at Aladdin's Site. Once you have an extracting program on your computer open the compressed file and extract its contents. After the files have been extracted open the setup or install program to install the software. Try to extract files into an empty folder.
Many programs use the same file names such as setup and install.
If you extract the program into a folder with files using the same names the installation may not work properly. Best of luck.