Xerox DocuMate 765 User Manual page 22

Installation
3. Click on Install to begin the ISIS driver installation.
4. Click on Finish to close the ISIS installation complete window.
NOTE: After the scanner driver installation is complete, any other
software you chose to install will automatically begin installing after the
driver is complete. If you did not plug in the scanner after the TWAIN
driver was installed, you can plug it in now or after you finish installing the
other software.
DocuMate 765 Scanner User's Guide 15