diff --git a/PC/VC6/pythoncore.dsp b/PC/VC6/pythoncore.dsp
index 9a369f2..84a5bb5 100644
--- a/PC/VC6/pythoncore.dsp
+++ b/PC/VC6/pythoncore.dsp
@@ -177,7 +177,7 @@
 # End Source File
 # Begin Source File
 
-SOURCE=..\_winreg.c
+SOURCE=..\winreg.c
 # End Source File
 # Begin Source File
 
diff --git a/PC/VS7.1/python.iss b/PC/VS7.1/python.iss
index 70c9bf3..2f6c8b7 100644
--- a/PC/VS7.1/python.iss
+++ b/PC/VS7.1/python.iss
@@ -155,8 +155,8 @@
 Source: DLLs\unicodedata.pyd; DestDir: {app}\DLLs; CopyMode: alwaysoverwrite; Components: main
 Source: libs\unicodedata.lib; DestDir: {app}\libs; CopyMode: alwaysoverwrite; Components: main
 
-Source: DLLs\_winreg.pyd; DestDir: {app}\DLLs; CopyMode: alwaysoverwrite; Components: main
-Source: libs\_winreg.lib; DestDir: {app}\libs; CopyMode: alwaysoverwrite; Components: main
+Source: DLLs\winreg.pyd; DestDir: {app}\DLLs; CopyMode: alwaysoverwrite; Components: main
+Source: libs\winreg.lib; DestDir: {app}\libs; CopyMode: alwaysoverwrite; Components: main
 
 Source: DLLs\winsound.pyd; DestDir: {app}\DLLs; CopyMode: alwaysoverwrite; Components: main
 Source: libs\winsound.lib; DestDir: {app}\libs; CopyMode: alwaysoverwrite; Components: main
diff --git a/PC/VS7.1/python20.wse b/PC/VS7.1/python20.wse
index 6c1c387..8611b8e 100644
--- a/PC/VS7.1/python20.wse
+++ b/PC/VS7.1/python20.wse
@@ -1713,8 +1713,8 @@
   Text=Extension module DLLs (.pyd); keep in synch with libs directory next
 end
 item: Install File
-  Source=.\_winreg.pyd
-  Destination=%MAINDIR%\DLLs\_winreg.pyd
+  Source=.\winreg.pyd
+  Destination=%MAINDIR%\DLLs\winreg.pyd
   Description=Extension modules
   Flags=0000000000000010
 end
@@ -1809,8 +1809,8 @@
   Text=Link libraries (.lib); keep in synch with DLLs above, except that the Python lib lives here.
 end
 item: Install File
-  Source=.\_winreg.lib
-  Destination=%MAINDIR%\libs\_winreg.lib
+  Source=.\winreg.lib
+  Destination=%MAINDIR%\libs\winreg.lib
   Description=Link library files
   Flags=0000000000000010
 end
diff --git a/PC/VS7.1/pythoncore.vcproj b/PC/VS7.1/pythoncore.vcproj
index f06d626..38982f4 100644
--- a/PC/VS7.1/pythoncore.vcproj
+++ b/PC/VS7.1/pythoncore.vcproj
@@ -401,7 +401,7 @@
 			RelativePath="..\..\Modules\_weakref.c">
 		</File>
 		<File
-			RelativePath="..\..\Pc\_winreg.c">
+			RelativePath="..\..\Pc\winreg.c">
 		</File>
 		<File
 			RelativePath="..\..\Objects\abstract.c">
diff --git a/PC/VS8.0/pythoncore.vcproj b/PC/VS8.0/pythoncore.vcproj
index 8e59dae..75414ce 100644
--- a/PC/VS8.0/pythoncore.vcproj
+++ b/PC/VS8.0/pythoncore.vcproj
@@ -1559,7 +1559,7 @@
 				>
 			</File>
 			<File
-				RelativePath="..\..\PC\_winreg.c"
+				RelativePath="..\..\PC\winreg.c"
 				>
 			</File>
 			<File
diff --git a/PC/config.c b/PC/config.c
index e3bbde7..1522533 100644
--- a/PC/config.c
+++ b/PC/config.c
@@ -42,7 +42,7 @@
 extern void init_csv(void);
 extern void init_sre(void);
 extern void initparser(void);
-extern void init_winreg(void);
+extern void initwinreg(void);
 extern void init_struct(void);
 extern void initdatetime(void);
 extern void init_functools(void);
@@ -116,7 +116,7 @@
 	{"_csv", init_csv},
 	{"_sre", init_sre},
 	{"parser", initparser},
-	{"_winreg", init_winreg},
+	{"winreg", initwinreg},
 	{"_struct", init_struct},
 	{"datetime", initdatetime},
 	{"_functools", init_functools},
diff --git a/PC/_winreg.c b/PC/winreg.c
similarity index 99%
rename from PC/_winreg.c
rename to PC/winreg.c
index 8ba4863..1b141d3 100644
--- a/PC/_winreg.c
+++ b/PC/winreg.c
@@ -1,5 +1,5 @@
 /*
-  _winreg.c
+  winreg.c
 
   Windows Registry access module for Python.
 
@@ -1355,7 +1355,7 @@
 		return NULL;
 	if (typ != REG_SZ) {
 		PyErr_SetString(PyExc_TypeError,
-				"Type must be _winreg.REG_SZ");
+				"Type must be winreg.REG_SZ");
 		return NULL;
 	}
 
@@ -1565,10 +1565,10 @@
 
 #define ADD_KEY(val) inskey(d, #val, val)
 
-PyMODINIT_FUNC init_winreg(void)
+PyMODINIT_FUNC initwinreg(void)
 {
 	PyObject *m, *d;
-	m = Py_InitModule3("_winreg", winreg_methods, module_doc);
+	m = Py_InitModule3("winreg", winreg_methods, module_doc);
 	if (m == NULL)
 		return;
 	d = PyModule_GetDict(m);