1. requirements

    - Windows 10
    - ActiveState TCL/TK 8.69 x64 (https://www.activestate.com/products/tcl/)
    - Gawk for Windows (Add directory of awk.exe to PATH)
    - NGSpice for Windows (Add directory of NGSpice to PATH, if it's not already done so)

2. Install Tree
C:/Program Files/XSchem/bin                          - Binaries (executable file).
C:/Program Files/XSchem/doc                          - Various documentation.
C:/Program Files/XSchem/share                        - default share directory containing systemlib, utile, xschem.tcl, xschemrc and *.awk (can be overriden with XSCHEM_SHARE_DIR) 
C:/Program Files/XSchem/xschem_library               - XSchem library consisting of .sch and .sym
C:/Users/<YourUserName>/xschem                       - User configuration directory

It's important to maintain this Install tree for XSchem to work correctly