diff --git a/mem_edit/VERSION b/mem_edit/VERSION
index bd73f47..be58634 100644
--- a/mem_edit/VERSION
+++ b/mem_edit/VERSION
@@ -1 +1 @@
-0.4
+0.3
diff --git a/mem_edit/windows.py b/mem_edit/windows.py
index cdaf657..038c58a 100644
--- a/mem_edit/windows.py
+++ b/mem_edit/windows.py
@@ -67,51 +67,19 @@ mem_types = {
         'MEM_PRIVATE': 0x20000,
         }
 
+
 # C struct for VirtualQueryEx
-class MEMORY_BASIC_INFORMATION32(ctypes.Structure):
+class MEMORY_BASIC_INFORMATION(ctypes.Structure):
     _fields_ = [
-            ('BaseAddress', ctypes.wintypes.DWORD),
-            ('AllocationBase', ctypes.wintypes.DWORD),
+            ('BaseAddress', ctypes.c_void_p),
+            ('AllocationBase', ctypes.c_void_p),
             ('AllocationProtect', ctypes.wintypes.DWORD),
-            ('RegionSize', ctypes.wintypes.DWORD),
+            ('RegionSize', ctypes.wintypes.UINT),
             ('State', ctypes.wintypes.DWORD),
             ('Protect', ctypes.wintypes.DWORD),
             ('Type', ctypes.wintypes.DWORD),
             ]
 
-class MEMORY_BASIC_INFORMATION64(ctypes.Structure):
-    _fields_ = [
-            ('BaseAddress', ctypes.c_ulonglong),
-            ('AllocationBase', ctypes.c_ulonglong),
-            ('AllocationProtect', ctypes.wintypes.DWORD),
-			('__alignment1', ctypes.wintypes.DWORD),
-            ('RegionSize', ctypes.c_ulonglong),
-            ('State', ctypes.wintypes.DWORD),
-            ('Protect', ctypes.wintypes.DWORD),
-            ('Type', ctypes.wintypes.DWORD),
-			('__alignment2', ctypes.wintypes.DWORD),
-            ]
-
-PTR_SIZE = ctypes.sizeof(ctypes.c_void_p)
-if PTR_SIZE == 8:       # 64-bit python
-    MEMORY_BASIC_INFORMATION = MEMORY_BASIC_INFORMATION64
-elif PTR_SIZE == 4:     # 32-bit python
-    MEMORY_BASIC_INFORMATION = MEMORY_BASIC_INFORMATION32
-
-ctypes.windll.kernel32.VirtualQueryEx.argtypes = [ctypes.wintypes.HANDLE,
-												  ctypes.wintypes.LPCVOID,
-												  ctypes.c_void_p,
-												  ctypes.c_size_t]
-ctypes.windll.kernel32.ReadProcessMemory.argtypes = [ctypes.wintypes.HANDLE,
-                                                     ctypes.wintypes.LPCVOID,
-                                                     ctypes.c_void_p,
-                                                     ctypes.c_size_t,
-                                                     ctypes.c_void_p]
-ctypes.windll.kernel32.WriteProcessMemory.argtypes = [ctypes.wintypes.HANDLE,
-                                                      ctypes.wintypes.LPCVOID,
-                                                      ctypes.c_void_p,
-                                                      ctypes.c_size_t,
-                                                      ctypes.c_void_p]
 
 # C struct for GetSystemInfo
 class SYSTEM_INFO(ctypes.Structure):
@@ -121,7 +89,7 @@ class SYSTEM_INFO(ctypes.Structure):
             ('dwPageSize', ctypes.wintypes.DWORD),
             ('lpMinimumApplicationAddress', ctypes.c_void_p),
             ('lpMaximumApplicationAddress', ctypes.c_void_p),
-            ('dwActiveProcessorMask', ctypes.c_void_p),
+            ('dwActiveProcessorMask', ctypes.wintypes.DWORD),
             ('dwNumberOfProcessors', ctypes.wintypes.DWORD),
             ('dwProcessorType', ctypes.wintypes.DWORD),
             ('dwAllocationGranularity', ctypes.wintypes.DWORD),
@@ -237,8 +205,6 @@ class Process(AbstractProcess):
                     return pid
             except ValueError:
                 pass
-            except MemEditError as err:
-                logger.info(repr(err))
 
         logger.info('Found no process with name {}'.format(target_name))
         return None