diff --git a/makepanda/makepanda.py b/makepanda/makepanda.py
index 1df7aa88c4..2f69aab63e 100755
--- a/makepanda/makepanda.py
+++ b/makepanda/makepanda.py
@@ -589,16 +589,20 @@ if (COMPILER == "MSVC"):
             LibName(pkg, SDK[pkg] +  '/lib/maxutil.lib')
             LibName(pkg, SDK[pkg] +  '/lib/paramblk2.lib')
     if (PkgSkip("PHYSX")==0):
-        LibName("PHYSX",      SDK["PHYSX"] + "/lib/Win32/PhysXLoader.lib")
-        LibName("PHYSX",      SDK["PHYSX"] + "/lib/Win32/NxCharacter.lib")
+        if GetTargetArch() == 'x64':
+            LibName("PHYSX",  SDK["PHYSXLIBS"] + "/PhysXLoader64.lib")
+            LibName("PHYSX",  SDK["PHYSXLIBS"] + "/NxCharacter64.lib")
+        else:
+            LibName("PHYSX",  SDK["PHYSXLIBS"] + "/PhysXLoader.lib")
+            LibName("PHYSX",  SDK["PHYSXLIBS"] + "/NxCharacter.lib")
+
         IncDirectory("PHYSX", SDK["PHYSX"] + "/Physics/include")
         IncDirectory("PHYSX", SDK["PHYSX"] + "/PhysXLoader/include")
         IncDirectory("PHYSX", SDK["PHYSX"] + "/NxCharacter/include")
         IncDirectory("PHYSX", SDK["PHYSX"] + "/NxExtensions/include")
         IncDirectory("PHYSX", SDK["PHYSX"] + "/Foundation/include")
         IncDirectory("PHYSX", SDK["PHYSX"] + "/Cooking/include")
-        # We need to be able to find NxCharacter.dll when importing code library libpandaphysx
-        AddToPathEnv("PATH", SDK["PHYSX"]+"/../Bin/win32/")
+
     if (PkgSkip("SPEEDTREE")==0):
         if GetTargetArch() == 'x64':
             libdir = SDK["SPEEDTREE"] + "/Lib/Windows/VC10.x64/"
diff --git a/makepanda/makepandacore.py b/makepanda/makepandacore.py
index ec374c27ab..60d284e6fb 100644
--- a/makepanda/makepandacore.py
+++ b/makepanda/makepandacore.py
@@ -1885,10 +1885,10 @@ def SdkLocateMacOSX(osxtarget = None):
         SDK["MACOSX"] = ""
 
 # Latest first
-PHYSXVERSIONINFO=[
-    ("PHYSX284","v2.8.4"),
-    ("PHYSX283","v2.8.3"),
-    ("PHYSX281","v2.8.1"),
+PHYSXVERSIONINFO = [
+    ("PHYSX284", "v2.8.4"),
+    ("PHYSX283", "v2.8.3"),
+    ("PHYSX281", "v2.8.1"),
 ]
 
 def SdkLocatePhysX():
@@ -1899,6 +1899,9 @@ def SdkLocatePhysX():
         SDK["PHYSXLIBS"] = dir + "/lib"
         return
 
+    if CrossCompiling():
+        return
+
     # Try to find a PhysX installation on the system.
     for (ver, key) in PHYSXVERSIONINFO:
         if (GetHost() == "windows"):
@@ -1906,8 +1909,17 @@ def SdkLocatePhysX():
             for folder in ListRegistryValues(folders):
                 if folder.endswith("NVIDIA PhysX SDK\\%s\\SDKs\\" % key) or \
                    folder.endswith("NVIDIA PhysX SDK\\%s_win\\SDKs\\" % key):
+
                     SDK["PHYSX"] = folder
-                    return
+                    if GetTargetArch() == 'x64':
+                        SDK["PHYSXLIBS"] = folder + "/lib/win64"
+                        AddToPathEnv("PATH", folder + "/../Bin/win64/")
+                    else:
+                        SDK["PHYSXLIBS"] = folder + "/lib/win32"
+                        AddToPathEnv("PATH", folder + "/../Bin/win32/")
+
+                   return
+
         elif (GetHost() == "linux"):
             incpath = "/usr/include/PhysX/%s/SDKs" % key
             libpath = "/usr/lib/PhysX/%s" % key