--- cairo-win32-surface.c	2006-03-17 15:48:56.000000000 +0500
+++ cairo-win32-surface.c.new	2006-03-17 15:50:16.000000000 +0500
@@ -566,6 +566,7 @@
 {
     static unsigned alpha_blend_checked = FALSE;
     static cairo_alpha_blend_func_t alpha_blend = NULL;
+    cairo_rectangle_t rectangle;
 
     BLENDFUNCTION blend_function;
 
@@ -583,7 +584,7 @@
 	if (VER_PLATFORM_WIN32_WINDOWS != os.dwPlatformId ||
 	    os.dwMajorVersion != 4 || os.dwMinorVersion != 10)
 	{
-	    HMODULE msimg32_dll = LoadLibrary ("msimg32");
+	    HMODULE msimg32_dll = LoadLibraryA ("msimg32");
 	    
 	    if (msimg32_dll != NULL)
 		alpha_blend = (cairo_alpha_blend_func_t)GetProcAddress (msimg32_dll,
@@ -601,6 +602,11 @@
     blend_function.SourceConstantAlpha = alpha;
     blend_function.AlphaFormat = src->format == CAIRO_FORMAT_ARGB32 ? AC_SRC_ALPHA : 0;
 
+    _cairo_surface_get_extents (src, &rectangle);
+    if (src_x<0) dst_x-=src_x, src_x=0;
+    if (src_y<0) dst_y-=src_y, src_y=0;
+    width=min(width, rectangle.width-src_x);
+    height=min(height, rectangle.height-src_y);
     if (!alpha_blend (dst->dc,
 		      dst_x, dst_y,
 		      width, height,