Returns the path to the Softimage installation directory, the
current user directory and other useful paths as a String. This makes it possible to write
scripts that do not rely on hardcoded paths and which work on any
user's machine.
The returned paths do not include a trailing path separator
character.
Note: In the case of multiple workgroups this method returns only
the first workgroup (when called with siWorkgroupPath or
siWorkgroupAddonPath). The best way to retrieve the full list of
active workgroups is via XSIApplication.Workgroups.
Note: Since Python does not support input parameters on properties,
this property will fail in Python. Use XSIApplication.GetInstallationPath2
instead