diff --git a/appveyor.yml b/appveyor.yml
index 6b12e8596..23289e5ce 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -42,4 +42,4 @@ on_success:
 on_failure:
 - ps: 
 on_finish:
-  - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+- ps:
diff --git a/package/deploy/winscp.ps1 b/package/deploy/winscp.ps1
index 496d2a3c3..20dc034ac 100755
--- a/package/deploy/winscp.ps1
+++ b/package/deploy/winscp.ps1
@@ -9,4 +9,5 @@ Param(
     [string]$FILE
 )
 Set-Variable -Name "UUSER" -Value "$env:UPLOAD_USER"
-winscp.exe /command sftp://$UUSER@dl.slic3r.org:$DIR/ /hostkey=* /privatekey=$KEY /upload "put $FILE"
+Set-Variable -Name "UPLOAD" -Value "$($FILE | Resolve-Path)"
+winscp.com /privatekey=$KEY /command "open sftp://$UUSER@dl.slic3r.org/$DIR -hostkey=*" "put $UPLOAD ./$FILE" "exit"
diff --git a/package/win/appveyor_deploy.ps1 b/package/win/appveyor_deploy.ps1
index b5f0a2525..dc4d44b9b 100644
--- a/package/win/appveyor_deploy.ps1
+++ b/package/win/appveyor_deploy.ps1
@@ -3,7 +3,7 @@ cd package/win
 ./compile_wrapper.ps1 524 | Write-Output
 ./package_win32.ps1 524| Write-Output
 cd ../../
-& package/deploy/winscp.ps1 -dir win -key $BUILD_FOLDER/package/deploy/slic3r-upload.ppk.appveyor -file *.zip:
+& package/deploy/winscp.ps1 -DIR win -KEY $BUILD_FOLDER/package/deploy/slic3r-upload.ppk -FILE *.zip:
 
 if (!(Test-Path C:\project\slic3r\slic3r.par)) {
   Add-AppveyorCompilationMessage -Message "Failed to package!" -Category Error