diff --git a/houy.py b/houy.py
index 8084e9d..99a5587 100755
--- a/houy.py
+++ b/houy.py
@@ -1,6 +1,5 @@
 #!/usr/bin/python3
 
-
 from subprocess import call
 from sys import argv, platform, exit, stderr
 from os import environ, getenv, chdir
@@ -25,7 +24,7 @@ def enter_hfs():
             exit(1)
         if hfsen.get(platform):
             h = list(hfsen[platform])
-            print('Found: ', ', '.join(f.name for f in h), '*', sep='')
+            print('HFS environment found: ', ', '.join(f.name for f in h), '*', sep='')
             hfs = h[-1]
         else:
             print("ERROR - couldn't find HFS")
@@ -40,40 +39,53 @@ def enter_hfs():
     chdir(hfs)
     return hfs
 
-def welcome_redshift():
-    if platform == 'win32':
-        if '-rs3' in argv:
-            redshift_path = 'C:/ProgramData/Redshift3'
+def init_opencl():
+    environ.update({
+        'HOUDINI_OCL_DEVICETYPE': 'GPU',
+        'HOUDINI_OCL_DEVICENUMBER': '0',
+    })
+
+def init_redshift(ver=0):
+    global plugins, redshift_path
+    rs_path = {
+        'linux': Path('/').glob('*/redshift' + (ver and str(ver) or '')),
+        'win32': Path(r'C:/ProgramData').glob('Redshift*'),
+    }
+    rs_path['darwin'] = rs_path['linux']
+
+    # choose version
+    paths = [p for p in rs_path[platform]]
+    if paths:
+        redshift_path = paths[0]
+        print('Redshift found:',str(redshift_path))
+        plugins = sorted(redshift_path.glob('redshift4houdini/[1-9]*'))
+        if plugins:
+            plugin = str(plugins[-1])
+            print('Redshift plugins found:', plugin)
+            environ.update({
+                'PATH': ';'.join(['{}/bin'.format(str(redshift_path)),
+                                  environ.get('PATH')]),
+                'REDSHIFT_COREDATAPATH': str(redshift_path),
+                'HOUDINI_PATH': "{};&".format(plugin),
+            })
         else:
-            redshift_path = 'C:/ProgramData/Redshift'
+            print('Redshift: no plugins found')
     else:
-        if '-rs3' in argv:
-            redshift_path = '/opt/redshift3'
-        else:
-            redshift_path = '/opt/redshift'
-    return redshift_path
-
-if __name__ == '__main__':
-    enter_hfs()
-    redshift_path = welcome_redshift()
-    if redshift_path:
-        print('Redshift:', redshift_path)
+        print('Redshift not found')
 
+def init_faststart():
     environ.update({
         'HOUDINI_NO_SPLASH': '1',
         'HOUDINI_DSO_ERROR': '2',
-        'PATH': ';'.join(['{}/bin'.format(redshift_path),
-                          environ.get('PATH')]),
-        'REDSHIFT_COREDATAPATH': redshift_path,
-        'HOUDINI_OCL_DEVICETYPE': 'GPU',
-        'HOUDINI_OCL_DEVICENUMBER': '0',
-        'HOUDINI_PATH': "{}/Plugins/Houdini/17.5.173;&".format(redshift_path),
     })
+
+def init_remote_gl():
     if platform == 'win32':
         print()
         print('For OpenGL support remotely run this as an administrator:')
         print(r'c:\Windows\System32\tscon.exe {} /dest:console'.format(getenv('SessionName')))
 
+def init_env():
     # Initialize env vars.
     if platform != 'win32':
         command = shlex.split("env -i sh -c '. houdini_setup >/dev/null && env'")
@@ -84,4 +96,14 @@ if __name__ == '__main__':
             environ[key] = value
             print(key, '=', value)
         proc.communicate()
+
+
+if __name__ == '__main__':
+    enter_hfs()
+    init_faststart()
+    init_opencl()
+    init_redshift()
+    init_remote_gl()
+    # init_env is not needed anymore
+    #init_env()
     call(['./bin/houdini'], env=environ)