diff --git a/doc/glew.html b/doc/glew.html
index 55d8806..f230275 100644
--- a/doc/glew.html
+++ b/doc/glew.html
@@ -115,14 +115,11 @@ name="ATI"><font size="+1"><b>ATI</b></font></a>
 <a href="http://oss.sgi.com/projects/ogl-sample/registry/ATI/envmap_bumpmap.txt">ATI_envmap_bumpmap</a><br>
 <a href="http://oss.sgi.com/projects/ogl-sample/registry/ATI/fragment_shader.txt">ATI_fragment_shader</a><br>
 <a href="http://www.ati.com/developer/atiopengl.pdf">ATI_map_object_buffer</a><br>
-ATI_mapped_texture<br>
 <a href="http://oss.sgi.com/projects/ogl-sample/registry/ATI/pn_triangles.txt">ATI_pn_triangles</a><br>
-ATI_point_cull_mode<br>
 <a href="http://www.ati.com/developer/atiopengl.pdf">ATI_separate_stencil</a><br>
 <a href="http://oss.sgi.com/projects/ogl-sample/registry/ATI/text_fragment_shader.txt">ATI_text_fragment_shader</a><br>
 <a href="http://www.ati.com/developer/atiopengl.pdf">ATI_texture_float</a><br>
 <a href="http://oss.sgi.com/projects/ogl-sample/registry/ATI/texture_mirror_once.txt">ATI_texture_mirror_once</a><br>
-ATI_timestamp<br>
 <a href="http://oss.sgi.com/projects/ogl-sample/registry/ATI/vertex_array_object.txt">ATI_vertex_array_object</a><br>
 <a href="http://www.ati.com/developer/atiopengl.pdf">ATI_vertex_attrib_array_object</a><br>
 <a href="http://oss.sgi.com/projects/ogl-sample/registry/ATI/vertex_streams.txt">ATI_vertex_streams</a><br>
diff --git a/include/GL/glew.h b/include/GL/glew.h
index 14ad010..c32b7da 100644
--- a/include/GL/glew.h
+++ b/include/GL/glew.h
@@ -230,14 +230,11 @@ extern "C" {
 #define GL_ATI_envmap_bumpmap 1
 #define GL_ATI_fragment_shader 1
 #define GL_ATI_map_object_buffer 1
-#define GL_ATI_mapped_texture 1
 #define GL_ATI_pn_triangles 1
-#define GL_ATI_point_cull_mode 1
 #define GL_ATI_separate_stencil 1
 #define GL_ATI_text_fragment_shader 1
 #define GL_ATI_texture_float 1
 #define GL_ATI_texture_mirror_once 1
-#define GL_ATI_timestamp 1
 #define GL_ATI_vertex_array_object 1
 #define GL_ATI_vertex_attrib_array_object 1
 #define GL_ATI_vertex_streams 1
@@ -3325,22 +3322,6 @@ extern GLEW_EXPORT PFNGLUNMAPOBJECTBUFFERATIPROC glUnmapObjectBufferATI;
 
 #endif /* GL_ATI_map_object_buffer */
 
-/* -------------------------- ATI_mapped_texture -------------------------- */
-
-#ifdef GL_ATI_mapped_texture
-
-#define GL_MAPPED_TEXTURE_PIXEL_STRIDE_ATI                      0x8820
-#define GL_MAPPED_TEXTURE_ROW_STRIDE_ATI                        0x8821
-#define GL_MAPPED_TEXTURE_LAYER_STRIDE_ATI                      0x8822
-
-typedef void (APIENTRY * PFNGLMAPTEXTURE3DPROC) (GLenum level, GLvoid **buffer);
-typedef void (APIENTRY * PFNGLUNMAPTEXTURE3DPROC) (void);
-
-extern GLEW_EXPORT PFNGLMAPTEXTURE3DPROC glMapTexture3D;
-extern GLEW_EXPORT PFNGLUNMAPTEXTURE3DPROC glUnmapTexture3D;
-
-#endif /* GL_ATI_mapped_texture */
-
 /* --------------------------- ATI_pn_triangles --------------------------- */
 
 #ifdef GL_ATI_pn_triangles
@@ -3363,16 +3344,6 @@ extern GLEW_EXPORT PFNGLPNTRIANGLESFATIPROC glPNTrianglesfATI;
 
 #endif /* GL_ATI_pn_triangles */
 
-/* -------------------------- ATI_point_cull_mode ------------------------- */
-
-#ifdef GL_ATI_point_cull_mode
-
-#define GL_POINT_CULL_MODE_ATI                                  0x60b3
-#define GL_POINT_CULL_CENTER_ATI                                0x60b4
-#define GL_POINT_CLIP_ATI                                       0x60b5
-
-#endif /* GL_ATI_point_cull_mode */
-
 /* -------------------------- ATI_separate_stencil ------------------------ */
 
 #ifdef GL_ATI_separate_stencil
@@ -3426,22 +3397,6 @@ extern GLEW_EXPORT PFNGLSTENCILFUNCSEPARATEATIPROC glStencilFuncSeparateATI;
 
 #endif
 
-/* ----------------------------- ATI_timestamp ---------------------------- */
-
-#ifdef GL_ATI_timestamp
-
-typedef void (APIENTRY * PFNGLNEWTIMESTAMPPROC) (GLvoid **);
-typedef void (APIENTRY * PFNGLDELETETIMESTAMPPROC) (GLvoid *);
-typedef void (APIENTRY * PFNGLSENDTIMESTAMPPROC) (GLvoid *);
-typedef void (APIENTRY * PFNGLWAITTIMESTAMPPROC) (GLvoid *);
-
-extern GLEW_EXPORT PFNGLNEWTIMESTAMPPROC glNewTimeStamp;
-extern GLEW_EXPORT PFNGLDELETETIMESTAMPPROC glDeleteTimeStamp;
-extern GLEW_EXPORT PFNGLSENDTIMESTAMPPROC glSendTimeStamp;
-extern GLEW_EXPORT PFNGLWAITTIMESTAMPPROC glWaitTimeStamp;
-
-#endif /* GL_ATI_timestamp */
-
 /* ------------------------ ATI_vertex_array_object ----------------------- */
 
 #ifdef GL_ATI_vertex_array_object
@@ -4544,14 +4499,11 @@ struct GLEW
   unsigned int ATI_envmap_bumpmap : 1;
   unsigned int ATI_fragment_shader : 1;
   unsigned int ATI_map_object_buffer : 1;
-  unsigned int ATI_mapped_texture : 1;
   unsigned int ATI_pn_triangles : 1;
-  unsigned int ATI_point_cull_mode : 1;
   unsigned int ATI_separate_stencil : 1;
   unsigned int ATI_text_fragment_shader : 1;
   unsigned int ATI_texture_float : 1;
   unsigned int ATI_texture_mirror_once : 1;
-  unsigned int ATI_timestamp : 1;
   unsigned int ATI_vertex_array_object : 1;
   unsigned int ATI_vertex_attrib_array_object : 1;
   unsigned int ATI_vertex_streams : 1;
diff --git a/src/glew.c b/src/glew.c
index 1c86ea7..c402a68 100644
--- a/src/glew.c
+++ b/src/glew.c
@@ -1245,21 +1245,6 @@ static GLboolean _glewInit_ATI_map_object_buffer ()
 }
 #endif /* GL_ATI_map_object_buffer */
 
-/* --------------------------- ATI_mapped_texture ------------------------- */
-
-#ifdef GL_ATI_mapped_texture
-PFNGLMAPTEXTURE3DPROC glMapTexture3D;
-PFNGLUNMAPTEXTURE3DPROC glUnmapTexture3D;
-
-static GLboolean _glewInit_ATI_mapped_texture ()
-{
-  GLboolean r = GL_FALSE;
-  r = r || (glMapTexture3D = (PFNGLMAPTEXTURE3DPROC)glewGetProcAddress("glMapTexture3D")) == NULL;
-  r = r || (glUnmapTexture3D = (PFNGLUNMAPTEXTURE3DPROC)glewGetProcAddress("glUnmapTexture3D")) == NULL;
-  return r;
-}
-#endif /* GL_ATI_mapped_texture */
-
 /* --------------------------- ATI_pn_triangles --------------------------- */
 
 #ifdef GL_ATI_pn_triangles
@@ -1290,25 +1275,6 @@ static GLboolean _glewInit_ATI_separate_stencil ()
 }
 #endif /* GL_ATI_separate_stencil */
 
-/* ----------------------------- ATI_timestamp ---------------------------- */
-
-#ifdef GL_ATI_timestamp
-PFNGLNEWTIMESTAMPPROC glNewTimeStamp = NULL;
-PFNGLDELETETIMESTAMPPROC glDeleteTimeStamp = NULL;
-PFNGLSENDTIMESTAMPPROC glSendTimeStamp = NULL;
-PFNGLWAITTIMESTAMPPROC glWaitTimeStamp = NULL;
-
-static GLboolean _glewInit_ATI_timestamp ()
-{
-  GLboolean r = GL_FALSE;
-  r = r || (glNewTimeStamp = (PFNGLNEWTIMESTAMPPROC) glewGetProcAddress("glNewTimeStamp")) == NULL;
-  r = r || (glDeleteTimeStamp = (PFNGLDELETETIMESTAMPPROC)glewGetProcAddress("glDeleteTimeStamp")) == NULL;
-  r = r || (glSendTimeStamp = (PFNGLSENDTIMESTAMPPROC)glewGetProcAddress("glSendTimeStamp")) == NULL;
-  r = r || (glWaitTimeStamp = (PFNGLWAITTIMESTAMPPROC)glewGetProcAddress("glWaitTimeStamp")) == NULL;
-  return r;
-}
-#endif /* GL_ATI_timestamp */
-
 /* ------------------------ ATI_vertex_array_object ----------------------- */
 
 #ifdef GL_ATI_vertex_array_object
@@ -2923,9 +2889,6 @@ static GLint _glewInit ()
   glew.ATI_pn_triangles = glewGetExtension("GL_ATI_pn_triangles");
   if (glewExperimental || glew.ATI_pn_triangles) glew.ATI_pn_triangles = !_glewInit_ATI_pn_triangles();
 #endif
-#ifdef GL_ATI_point_cull_mode
-  glew.ATI_point_cull_mode = glewGetExtension("GL_ATI_point_cull_mode");
-#endif
 #ifdef GL_ATI_separate_stencil
   glew.ATI_separate_stencil = glewGetExtension("GL_ATI_separate_stencil");
   if (glewExperimental || glew.ATI_separate_stencil) glew.ATI_separate_stencil = !_glewInit_ATI_separate_stencil();
@@ -2939,10 +2902,6 @@ static GLint _glewInit ()
 #ifdef GL_ATI_texture_mirror_once
   glew.ATI_texture_mirror_once = glewGetExtension("GL_ATI_texture_mirror_once");
 #endif
-#ifdef GL_ATI_timestamp
-  glew.ATI_timestamp = glewGetExtension("GL_ATI_timestamp");
-  if (glewExperimental || glew.ATI_timestamp) glew.ATI_timestamp = !_glewInit_ATI_timestamp();
-#endif
 #ifdef GL_ATI_vertex_array_object
   glew.ATI_vertex_array_object = glewGetExtension("GL_ATI_vertex_array_object");
   if (glewExperimental || glew.ATI_vertex_array_object) glew.ATI_vertex_array_object = !_glewInit_ATI_vertex_array_object();
diff --git a/src/glewinfo.c b/src/glewinfo.c
index b5553c4..d8b655f 100644
--- a/src/glewinfo.c
+++ b/src/glewinfo.c
@@ -797,17 +797,6 @@ static void glewInfo_ATI_map_object_buffer ()
 }
 #endif /* GL_ATI_map_object_buffer */
 
-/* --------------------------- ATI_mapped_texture ------------------------- */
-
-#ifdef GL_ATI_mapped_texture
-static void glewInfo_ATI_mapped_texture ()
-{
-  char me[] = "GL_ATI_mapped_texture"; glewPrintExt(me, glew.ATI_mapped_texture);
-  glewInfoFunc(glMapTexture3D == NULL, "glMapTexture3D");
-  glewInfoFunc(glUnmapTexture3D == NULL, "glUnmapTexture3D");
-}
-#endif /* GL_ATI_mapped_texture */
-
 /* --------------------------- ATI_pn_triangles --------------------------- */
 
 #ifdef GL_ATI_pn_triangles
@@ -830,19 +819,6 @@ static void glewInfo_ATI_separate_stencil ()
 }
 #endif /* GL_ATI_separate_stencil */
 
-/* ----------------------------- ATI_timestamp ---------------------------- */
-
-#ifdef GL_ATI_timestamp
-static void glewInfo_ATI_timestamp ()
-{
-  char me[] = "GL_ATI_timestamp"; glewPrintExt(me, glew.ATI_timestamp);
-  glewInfoFunc(glNewTimeStamp == NULL, "glNewTimeStamp");
-  glewInfoFunc(glDeleteTimeStamp == NULL, "glDeleteTimeStamp");
-  glewInfoFunc(glSendTimeStamp == NULL, "glSendTimeStamp");
-  glewInfoFunc(glWaitTimeStamp == NULL, "glWaitTimeStamp");
-}
-#endif /* GL_ATI_timestamp */
-
 /* ------------------------ ATI_vertex_array_object ----------------------- */
 
 #ifdef GL_ATI_vertex_array_object
@@ -1888,9 +1864,6 @@ static void glewInfo ()
 #ifdef GL_ATI_mapped_texture
   glewInfo_ATI_mapped_texture();
 #endif
-#ifdef GL_ATI_point_cull_mode
-  glewPrintExt("GL_ATI_point_cull_mode", glew.ATI_point_cull_mode);
-#endif
 #ifdef GL_ATI_pn_triangles
   glewInfo_ATI_pn_triangles();
 #endif
@@ -1906,9 +1879,6 @@ static void glewInfo ()
 #ifdef GL_ATI_texture_mirror_once
   glewPrintExt("GL_ATI_texture_mirror_once", glew.ATI_texture_mirror_once);
 #endif
-#ifdef GL_ATI_timestamp
-  glewInfo_ATI_timestamp();
-#endif
 #ifdef GL_ATI_vertex_array_object
   glewInfo_ATI_vertex_array_object();
 #endif