diff --git a/appveyor.yml b/appveyor.yml
index 2cd238c..53b2f4a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,9 +14,11 @@ init:
 install:
 - cmd: vcpkg install zeromq:x64-windows
 #- cmd: vcpkg integrate install
-- cmd: dir c:\Tools\vcpkg\installed\x64-windows\bin\* 
 - cmd: mkdir C:\projects\clrzmq4\bin\Release\amd64
-- cmd: mklink /h C:\projects\clrzmq4\bin\Release\amd64\libzmq.dll c:\Tools\vcpkg\installed\x64-windows\bin\libzmq-mt-4_3_1.dll
+- cmd: mklink /h C:\projects\clrzmq4\bin\Release\amd64\libzmq.dll c:\Tools\vcpkg\installed\x64-windows\bin\libzmq-mt-4_3_3.dll
+- cmd: echo "If the mklink command above fails to create a link, look into C:\Tools\vcpkg\installed\x64-windows\bin"
+- cmd: echo "there may be a new libzmq-mt-4_n_n.dll file, and do change this appveyor.yml accordingly:"
+- cmd: dir /s C:\Tools\vcpkg\installed\x64-windows\*zmq*
 
 - cmd: nuget restore clrzmq4.vs.sln