patch 7.4.1313
Problem:    MS-Windows: Using socket after it was closed causes an exception.
Solution:   Don't give an error when handling WM_NETBEANS.  Re-enable tests
            for MS-Windows.
diff --git a/src/testdir/test_channel.vim b/src/testdir/test_channel.vim
index 7b66099..f0a149d 100644
--- a/src/testdir/test_channel.vim
+++ b/src/testdir/test_channel.vim
@@ -191,10 +191,7 @@
 endfunc
 
 func Test_two_channels()
-  " TODO: make this work again with MS-Windows
-  if has('unix')
-    call s:run_server('s:two_channels')
-  endif
+  call s:run_server('s:two_channels')
 endfunc
 
 " Test that a server crash is handled gracefully.
@@ -211,10 +208,7 @@
 endfunc
 
 func Test_server_crash()
-  " TODO: make this work again with MS-Windows
-  if has('unix')
-    call s:run_server('s:server_crash')
-  endif
+  call s:run_server('s:server_crash')
 endfunc
 
 let s:reply = ""