diff --git a/windows/winobject/volume.py b/windows/winobject/volume.py
index 4f6790d..b9f54cd 100644
--- a/windows/winobject/volume.py
+++ b/windows/winobject/volume.py
@@ -31,7 +31,7 @@ class LogicalDrive(AutoHandle):
 
         :type: :class:`long` or :class:`int` (or subclass)
         """
-        t = winproxy.GetDriveTypeA(self.name)
+        t = winproxy.GetDriveTypeW(self.name)
         return self.DRIVE_TYPE.get(t,t)
 
     @property
@@ -63,7 +63,7 @@ class LogicalDrive(AutoHandle):
 
     def _get_handle(self):
         nt_name = windows.utils.dospath_to_ntpath(self.name)
-        handle = windows.winproxy.CreateFileA(nt_name, gdef.GENERIC_READ,
+        handle = windows.winproxy.CreateFileW(nt_name, gdef.GENERIC_READ,
                                                 gdef.FILE_SHARE_READ, None, gdef.OPEN_EXISTING, gdef.FILE_FLAG_BACKUP_SEMANTICS , None)
         return handle
 
@@ -75,20 +75,20 @@ def enum_logical_drive():
 
 def get_logical_drive_names():
     size = 0x100
-    buffer = ctypes.c_buffer(size)
-    rsize = winproxy.GetLogicalDriveStringsA(0x1000, buffer)
-    return buffer[:rsize].rstrip(b"\x00").split(b"\x00")
+    buffer = ctypes.create_unicode_buffer(size)
+    rsize = winproxy.GetLogicalDriveStringsW(size, buffer)
+    return buffer[:rsize].rstrip(u"\x00").split(u"\x00")
 
 def get_info(drivename):
     size = 0x1000
-    volume_name = ctypes.c_buffer(size)
-    fs_name = ctypes.c_buffer(size)
+    volume_name = ctypes.create_unicode_buffer(size)
+    fs_name = ctypes.create_unicode_buffer(size)
     flags = DWORD()
-    winproxy.GetVolumeInformationA(drivename, volume_name, size, None, None, ctypes.byref(flags), fs_name, size)
+    winproxy.GetVolumeInformationW(drivename, volume_name, size, None, None, ctypes.byref(flags), fs_name, size)
     return volume_name[:10], fs_name[:10]
 
 def query_dos_device(name):
     size = 0x1000
-    buffer = ctypes.c_buffer(size)
-    rsize = winproxy.QueryDosDeviceA(name, buffer, size)
-    return buffer[:rsize].rstrip(b"\x00").split(b"\x00")
\ No newline at end of file
+    buffer = ctypes.create_unicode_buffer(size)
+    rsize = winproxy.QueryDosDeviceW(name, buffer, size)
+    return buffer[:rsize].rstrip(u"\x00").split(u"\x00")
\ No newline at end of file