diff --git a/samples/drvobj.py b/samples/drvobj.py
index c56f96a..7d108fd 100644
--- a/samples/drvobj.py
+++ b/samples/drvobj.py
@@ -44,6 +44,8 @@ def getObjectInDir( dirObj, objName ):
               else:
                   dirEntry = 0    
 
+    return None      
+
 
 
                                                                           
diff --git a/samples/proclist.py b/samples/proclist.py
index 1accfa4..191f7fe 100644
--- a/samples/proclist.py
+++ b/samples/proclist.py
@@ -10,24 +10,24 @@ def processInfo():
     processList = typedVarList( nt.PsActiveProcessHead, "nt", "_EPROCESS", "ActiveProcessLinks"  )
 
     for process in processList:
-      print "".join( [chr(i) for i in process.ImageFileName if i != 0] )
+        print "".join( [chr(i) for i in process.ImageFileName if i != 0] )
 
 
+def main():
 
-if __name__ == "__main__":
+    if not isWindbgExt():
+        if not loadDump( sys.argv[1] ):
+             dprintln( sys.argv[1] + " - load failed" )
+             return
 
-
-    while True:
-
-        if not isWindbgExt():
-            if not loadDump( sys.argv[1] ):
-                dprintln( sys.argv[1] + " - load failed" )
-                break
-
-        if not isKernelDebugging():
-            dprintln( "not a kernel debugging" )
-            break 
+    if not isKernelDebugging():
+        dprintln( "not a kernel debugging" )
+        return   
                  
-        processInfo()
-        break      
+    processInfo()
+
+	
+if __name__ == "__main__":
+    main()
+
 
diff --git a/snippets/iat.py b/snippets/iat.py
index a6d9896..f134c26 100644
--- a/snippets/iat.py
+++ b/snippets/iat.py
@@ -46,7 +46,7 @@ def iat( moduleName, mask = "*" ):
         else:
             iatEntry = ptrQWord( iatAddr + i*pSize )
 
-        if  iatEntry != 0:
+        if  iatEntry != None and iatEntry != 0:
             symbolName = findSymbol( iatEntry ) 
             if fnmatch.fnmatch( symbolName, mask ): 
                 dprintln( symbolName )
diff --git a/snippets/ntobj.py b/snippets/ntobj.py
index b360252..3e29179 100644
--- a/snippets/ntobj.py
+++ b/snippets/ntobj.py
@@ -73,7 +73,6 @@ def getObjectNameInfoFromInfoMask(p):
 # Select platform-specific function for getting name of object
 getObjectNameInfo = None
 try:
-  getTypeClass("nt", "_OBJECT_HEADER").NameInfoOffset
   getObjectNameInfo = getObjectNameInfoFromHeader
 except AttributeError:
   getObjectNameInfo = getObjectNameInfoFromInfoMask