diff --git a/appveyor.yml b/appveyor.yml
index 48fb507b0..92dfe7bef 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,18 +1,20 @@
 ---
-version: 2.9.0.dev.{build}
+version: 2.11.0.dev.{build}
 
 os: Visual Studio 2017
 platform: x64
 
 environment:
+  BITS: 64
+  CMAKE_BUILD_TYPE: Debug
   CMAKE_GENERATOR: "Visual Studio 15 2017 Win64"
-  VSCMD_VER: 15.0
   # https://www.appveyor.com/docs/windows-images-software/#boost
-  BOOST_ROOT: 'C:\Libraries\boost_1_66_0'
-  BOOST_LIBRARYDIR: 'C:\Libraries\boost_1_66_0\lib64-msvc-14.1'
+  BOOST_ROOT: 'C:\Libraries\boost_1_67_0'
+  BOOST_LIBRARYDIR: 'C:\Libraries\boost_1_67_0\lib64-msvc-14.1'
+  # https://www.appveyor.com/docs/windows-images-software/#tools
+  OPENSSL_ROOT_DIR: 'C:\OpenSSL-v111-Win64'
   BISON_BINARY: 'C:\ProgramData\chocolatey\lib\winflexbison3\tools\win_bison.exe'
   FLEX_BINARY: 'C:\ProgramData\chocolatey\lib\winflexbison3\tools\win_flex.exe'
-  CMAKE_BUILD_TYPE: Debug
 
 branches:
   only:
@@ -33,32 +35,21 @@ install:
 # https://help.appveyor.com/discussions/questions/18777-how-to-use-vcvars64bat-from-powershell#comment_44999171
 before_build:
 - ps: |
-    $bits = $env:PLATFORM -replace "^x", ""
-    cmd.exe /c "call `"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars${bits}.bat`" && set > `"${env:TEMP}\vcvars.txt`""
-    Get-Content "$env:TEMP\vcvars.txt" | Foreach-Object {
-      if ($_ -match "^(VSCMD.*?)=(.*)$") {
-        Set-Content ("env:" + $matches[1]) $matches[2]
-      }
-    }
+    & .\tools\win32\load-vsenv.ps1
 
-    if (-not (Test-Path ".\build\vendor\OpenSSL")) {
-      & .\tools\win32\download-openssl.ps1
-      if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
-    }
-
-    & .\tools\win32\configure.ps1
+    & powershell.exe .\tools\win32\configure.ps1
     if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
 
     del build\Icinga*.msi
 
 build_script:
 - ps: |
-    & .\tools\win32\build.ps1
+    & powershell.exe .\tools\win32\build.ps1
     if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
 
 test_script:
 - ps: |
-    & .\tools\win32\test.ps1
+    & powershell.exe .\tools\win32\test.ps1
     if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
 
 # Disable until we really need them
diff --git a/tools/win32/build.ps1 b/tools/win32/build.ps1
index d9dba5f94..33346a91b 100644
--- a/tools/win32/build.ps1
+++ b/tools/win32/build.ps1
@@ -1,7 +1,13 @@
+Set-PsDebug -Trace 1
+
 if (-not (Test-Path env:ICINGA2_BUILDPATH)) {
   $env:ICINGA2_BUILDPATH = '.\build'
 }
 
+if (-not (Test-Path env:CMAKE_BUILD_TYPE)) {
+  $env:CMAKE_BUILD_TYPE = 'RelWithDebInfo'
+}
+
 if (-not (Test-Path $env:ICINGA2_BUILDPATH)) {
   Write-Host "Path '$env:ICINGA2_BUILDPATH' does not exist!"
   exit 1
@@ -14,5 +20,8 @@ if (-not ($env:PATH -contains $env:CMAKE_PATH)) {
   $env:PATH = $env:CMAKE_PATH + ';' + $env:PATH
 }
 
-cmake.exe --build "$env:ICINGA2_BUILDPATH" --target PACKAGE --config RelWithDebInfo
+cmake.exe --build "$env:ICINGA2_BUILDPATH" --target ALL_BUILD --config $env:CMAKE_BUILD_TYPE
+if ($lastexitcode -ne 0) { exit $lastexitcode }
+
+cmake.exe --build "$env:ICINGA2_BUILDPATH" --target PACKAGE --config $env:CMAKE_BUILD_TYPE
 if ($lastexitcode -ne 0) { exit $lastexitcode }
diff --git a/tools/win32/configure.ps1 b/tools/win32/configure.ps1
index 0ea0a50cb..63305e5dc 100644
--- a/tools/win32/configure.ps1
+++ b/tools/win32/configure.ps1
@@ -1,3 +1,5 @@
+Set-PsDebug -Trace 1
+
 if (-not (Test-Path env:ICINGA2_BUILDPATH)) {
   $env:ICINGA2_BUILDPATH = '.\build'
 }
@@ -8,40 +10,23 @@ if (-not (Test-Path env:CMAKE_BUILD_TYPE)) {
 if (-not (Test-Path "$env:ICINGA2_BUILDPATH")) {
   mkdir "$env:ICINGA2_BUILDPATH" | out-null
 }
-if (-not (Test-Path "$env:ICINGA2_BUILDPATH\install")) {
-  mkdir "$env:ICINGA2_BUILDPATH\install" | out-null
-}
 if (-not (Test-Path env:CMAKE_PATH)) {
   $env:CMAKE_PATH = 'C:\Program Files\CMake\bin'
 }
 if (-not ($env:PATH -contains $env:CMAKE_PATH)) {
   $env:PATH = $env:CMAKE_PATH + ';' + $env:PATH
 }
-
 if (-not (Test-Path env:CMAKE_GENERATOR)) {
   $env:CMAKE_GENERATOR = 'Visual Studio 15 2017 Win64'
 }
 if (-not (Test-Path env:OPENSSL_ROOT_DIR)) {
-  if (Test-Path env:VSCMD_ARG_TGT_ARCH) {
-    $OpenSSL_arch = $env:VSCMD_ARG_TGT_ARCH
-  } else {
-    throw "Missing env variable VSCMD_ARG_TGT_ARCH"
-  }
-
-  if (Test-Path env:VSCMD_VER) {
-    $VSmajor = $env:VSCMD_VER -replace "\..*$", ""
-    $OpenSSL_vcbuild = "vc${VSmajor}0"
-  } else {
-    throw "Missing env variable VSCMD_VER"
-  }
-
-  $env:OPENSSL_ROOT_DIR = "$env:ICINGA2_BUILDPATH\vendor\OpenSSL-$OpenSSL_arch-$OpenSSL_vcbuild"
+  $env:OPENSSL_ROOT_DIR = 'c:\local\OpenSSL_1_1_1b-Win64'
 }
 if (-not (Test-Path env:BOOST_ROOT)) {
-  $env:BOOST_ROOT = 'c:\local\boost_1_65_1'
+  $env:BOOST_ROOT = 'c:\local\boost_1_69_0-Win64'
 }
 if (-not (Test-Path env:BOOST_LIBRARYDIR)) {
-  $env:BOOST_LIBRARYDIR = 'c:\local\boost_1_65_1\lib64-msvc-14.1'
+  $env:BOOST_LIBRARYDIR = 'c:\local\boost_1_69_0-Win64\lib64-msvc-14.1'
 }
 if (-not (Test-Path env:FLEX_BINARY)) {
   $env:FLEX_BINARY = 'C:\ProgramData\chocolatey\bin\win_flex.exe'
@@ -63,11 +48,12 @@ if (Test-Path CMakeCache.txt) {
 
 & cmake.exe "$sourcePath" `
   -DCMAKE_BUILD_TYPE="$env:CMAKE_BUILD_TYPE" `
-  -G $env:CMAKE_GENERATOR -DCPACK_GENERATOR=WIX `
+  -G "$env:CMAKE_GENERATOR" -DCPACK_GENERATOR=WIX `
   -DICINGA2_WITH_MYSQL=OFF -DICINGA2_WITH_PGSQL=OFF `
+  -DICINGA2_WITH_LIVESTATUS=OFF -DICINGA2_WITH_COMPAT=OFF `
   -DOPENSSL_ROOT_DIR="$env:OPENSSL_ROOT_DIR" `
-  -DBOOST_ROOT="$env:BOOST_ROOT" `
   -DBOOST_LIBRARYDIR="$env:BOOST_LIBRARYDIR" `
+  -DBOOST_INCLUDEDIR="$env:BOOST_ROOT" `
   -DFLEX_EXECUTABLE="$env:FLEX_BINARY" `
   -DBISON_EXECUTABLE="$env:BISON_BINARY"
 
diff --git a/tools/win32/download-openssl.ps1 b/tools/win32/download-openssl.ps1
deleted file mode 100644
index 0e074e6ae..000000000
--- a/tools/win32/download-openssl.ps1
+++ /dev/null
@@ -1,76 +0,0 @@
-$ErrorActionPreference = "Stop"
-
-$OpenSSL_version = '1.1.0g-1'
-
-if (Test-Path env:VSCMD_ARG_TGT_ARCH) {
-  $OpenSSL_arch = $env:VSCMD_ARG_TGT_ARCH
-} else {
-  throw "Missing env variable VSCMD_ARG_TGT_ARCH"
-}
-if (Test-Path env:VSCMD_VER) {
-  $VSmajor = $env:VSCMD_VER -replace "\..*$", ""
-  $OpenSSL_vcbuild = "vc${VSmajor}0"
-} else {
-  throw "Missing env variable VSCMD_VER"
-}
-
-$OpenSSL_fileversion = $OpenSSL_version.Replace('.', '_').Split('-')[0]
-$OpenSSL_file = [string]::Format(
-  'openssl-{0}-binary-icinga-{1}-{2}.zip',
-  $OpenSSL_fileversion,
-  $OpenSSL_arch,
-  $OpenSSL_vcbuild
-)
-$OpenSSL_url = [string]::Format(
-  'https://github.com/Icinga/openssl-windows/releases/download/v{0}/{1}',
-  $OpenSSL_version,
-  $OpenSSL_file
-)
-
-if (-not (Test-Path env:ICINGA2_BUILDPATH)) {
-  $env:ICINGA2_BUILDPATH = '.\build'
-}
-
-$vendor_path = $env:ICINGA2_BUILDPATH + '\vendor'
-$OpenSSL_zip_location = $env:ICINGA2_BUILDPATH + '\vendor\' + $OpenSSL_file
-$OpenSSL_vendor_path = "$vendor_path\OpenSSL-$OpenSSL_arch-$OpenSSL_vcbuild"
-
-# Tune Powershell TLS protocols
-$AllProtocols = [System.Net.SecurityProtocolType]'Tls11,Tls12'
-[System.Net.ServicePointManager]::SecurityProtocol = $AllProtocols
-
-if (-not (Test-Path $env:ICINGA2_BUILDPATH)) {
-  mkdir $env:ICINGA2_BUILDPATH | out-null
-}
-if (-not (Test-Path $vendor_path)) {
-  mkdir $vendor_path | out-null
-}
-
-if (Test-Path $OpenSSL_zip_location) {
-  Write-Output "OpenSSL archive available at $OpenSSL_zip_location"
-} else {
-  Write-Output "Downloading OpenSSL binary dist from $OpenSSL_url"
-
-  $progressPreference = 'silentlyContinue'
-  Invoke-WebRequest -Uri $OpenSSL_url -OutFile $OpenSSL_zip_location
-  $progressPreference = 'Continue'
-
-  if (Test-Path $OpenSSL_vendor_path) {
-    Remove-Item -Recurse $OpenSSL_vendor_path
-  }
-}
-
-if (-not (Test-Path $OpenSSL_vendor_path)) {
-  mkdir $OpenSSL_vendor_path | out-null
-
-  Write-Output "Extracting ZIP to $OpenSSL_vendor_path"
-  Add-Type -AssemblyName System.IO.Compression.FileSystem
-  $pwd = Get-Location
-  [System.IO.Compression.ZipFile]::ExtractToDirectory(
-    (Join-Path -path $pwd -childpath $OpenSSL_zip_location),
-    (Join-Path -path $pwd -childpath $OpenSSL_vendor_path)
-  )
-  if ($lastexitcode -ne 0){ exit $lastexitcode }
-} else {
-  Write-Output "OpenSSL is already available at $OpenSSL_vendor_path"
-}
diff --git a/tools/win32/load-vsenv.ps1 b/tools/win32/load-vsenv.ps1
new file mode 100644
index 000000000..86fcf4fba
--- /dev/null
+++ b/tools/win32/load-vsenv.ps1
@@ -0,0 +1,58 @@
+# why that env handling, see
+# https://help.appveyor.com/discussions/questions/18777-how-to-use-vcvars64bat-from-powershell#comment_44999171
+
+Set-PsDebug -Trace 1
+
+$SOURCE = Get-Location
+
+if (Test-Path env:ICINGA2_BUILDPATH) {
+  $BUILD = $env:ICINGA2_BUILDPATH
+} else {
+  $BUILD = "${SOURCE}\Build"
+}
+
+if (-not (Test-Path $BUILD)) {
+  mkdir $BUILD | Out-Null
+}
+
+if (Test-Path env:VS_INSTALL_PATH) {
+  $VSBASE = $env:VS_INSTALL_PATH
+} else {
+  $VSBASE = "C:\Program Files (x86)\Microsoft Visual Studio\2017"
+}
+
+if (Test-Path env:BITS) {
+  $bits = $env:BITS
+} else {
+  $bits = 64
+}
+
+# Execute vcvars in cmd and store env
+$vcvars_locations = @(
+  "${VSBASE}\BuildTools\VC\Auxiliary\Build\vcvars${bits}.bat",
+  "${VSBASE}\Community\VC\Auxiliary\Build\vcvars${bits}.bat"
+)
+
+$vcvars = $null
+foreach ($file in $vcvars_locations) {
+  if (Test-Path $file) {
+    $vcvars = $file
+    break
+  }
+}
+
+if ($vcvars -eq $null) {
+  throw "Could not get Build environment script at locations: ${vcvars_locations}"
+}
+
+cmd.exe /c "call `"${vcvars}`" && set > `"${BUILD}\vcvars.txt`""
+if ($LastExitCode -ne 0) {
+  throw "Could not load Build environment from: ${vcvars}"
+}
+
+# Load environment for PowerShell
+Get-Content "${BUILD}\vcvars.txt" | Foreach-Object {
+  if ($_ -match "^(VSCMD.*?)=(.*)$") {
+	Set-Content ("env:" + $matches[1]) $matches[2]
+  }
+}
diff --git a/tools/win32/test.ps1 b/tools/win32/test.ps1
index 81fe8e6fa..3d3c12540 100644
--- a/tools/win32/test.ps1
+++ b/tools/win32/test.ps1
@@ -1,7 +1,13 @@
+Set-PsDebug -Trace 1
+
 if (-not (Test-Path env:ICINGA2_BUILDPATH)) {
   $env:ICINGA2_BUILDPATH = 'build'
 }
 
+if (-not (Test-Path env:CMAKE_BUILD_TYPE)) {
+  $env:CMAKE_BUILD_TYPE = 'RelWithDebInfo'
+}
+
 [string]$pwd = Get-Location
 
 if (-not (Test-Path $env:ICINGA2_BUILDPATH)) {
@@ -18,7 +24,7 @@ if (-not ($env:PATH -contains $env:CMAKE_PATH)) {
 
 cd "$env:ICINGA2_BUILDPATH"
 
-ctest.exe -C RelWithDebInfo -T test -O $env:ICINGA2_BUILDPATH/Test.xml --output-on-failure
+ctest.exe -C "${env:CMAKE_BUILD_TYPE}" -T test -O $env:ICINGA2_BUILDPATH/Test.xml --output-on-failure
 if ($lastexitcode -ne 0) {
   cd ..
   exit $lastexitcode