Btrfs fix

UniversalModloader.py

@@ -6,6 +6,7 @@ import shutil
 import webbrowser
 import configparser
 import subprocess
+import ctypes
 
 oldexcepthook = sys.excepthook
 def newexcepthook(type,value,traceback):
@@ -87,6 +88,7 @@ def getModlist(path,sort = True):
 	if sort == True: return sorted(modList)
 	return modList
 
+btrfsdll = False
 def linkFile(src,dst,method = False):
 	if not method: method = config["default"]["linkMethod"] 
 	if method == "hardlink":
@@ -98,8 +100,10 @@ def linkFile(src,dst,method = False):
 		return
 	
 	if method == "reflink":
-		if os.system == "nt":
-			subprocess.call(["rundll32.exe","shellbtrfs.dll,ReflinkCopy",src,dst])
+		if os.name == "nt":
+			global btrfsdll
+			if not btrfsdll: btrfsdll = ctypes.cdll.LoadLibrary("shellbtrfs.dll")
+			btrfsdll.ReflinkCopyW(src,dst)
 		else:
 			subprocess.call(["cp","-n","--reflink=always",src,dst])
 		return