diff --git a/example/uwp/README.md b/example/uwp/README.md
new file mode 100644
index 00000000..b50a0a57
--- /dev/null
+++ b/example/uwp/README.md
@@ -0,0 +1,27 @@
+# TDLib Universal Windows Platform example
+
+Here are script for building TDLib SDK for universal windows platfrom and an example of its usage.
+
+## Building SDK
+
+1. Install [vcpkg](https://github.com/Microsoft/vcpkg).
+2. With `vcpkg` install `zlib` and `openssl` for all UWP architectures.
+```
+.\vcpkg.exe install openssl:arm-uwp openssl:arm64-uwp openssl:x64-uwp openssl:x86-uwp zlib:arm-uwp zlib:arm64-uwp zlib:x64-uwp zlib:x86-uwp
+```
+3. Install 7z. You may also use zip or winrar.
+4. Run build.ps1 with `powershell`.
+Pass path to vcpkg as `-vcpkg-root` argument.
+```
+.\build.ps1 -vcpkg-root "~\vcpkg\"
+```
+If you wish to use `zip` or `WinRAR` instead of `7z` pass `-compress zip` or `-compress winrar`.
+The build process will take a lot of time, as TDLib will be built for multiple
+platforms in Debug and Release configurations. You may interrupt and resume the script at any moment.
+If you will need to restart the build from scratch, call `.\build.ps -mode "clean"` first.
+5. `tdlib.vsix` will be at `build-uwp\vsix\tdlib.vsix`. Open it and install the SDK.
+
+## Example of usage
+`app` directory contains an example of UWP app for windows. Just open it with Visual Studio 2015 or 2017 and run.
+
+
diff --git a/example/uwp/build.ps1 b/example/uwp/build.ps1
index 375dcc1a..dbbad948 100644
--- a/example/uwp/build.ps1
+++ b/example/uwp/build.ps1
@@ -2,6 +2,7 @@ param (
   [string]$vcpkg_root = $(throw "-vcpkg_root=<path to vcpkg> is required"),
   [string]$arch = "",
   [string]$mode = "all"
+  [string]$compress = "7z"
 )
 $ErrorActionPreference = "Stop"
 
@@ -105,18 +106,19 @@ function export {
 
   cd vsix
 
-  7z.exe a -tzip -r tdlib.vsix *
-  #zip -r tdlib.vsix *
-  #WinRAR.exe a -afzip -r -ep1 tdlib.vsix *
+ if ($compress -eq "zip") {
+    zip -r tdlib.vsix *
+  } else if ($compress -eq "winrar") {
+    WinRAR.exe a -afzip -r -ep1 tdlib.vsix *
+  } else {
+    7z.exe a -tzip -r tdlib.vsix *
+  }
   cd ..
 }
 
 function run {
   Push-Location
   Try {
-    if (($mode -eq "clean") -or ($mode -eq "all")) {
-      clean
-    }
     if (($mode -eq "prepare") -or ($mode -eq "all")) {
       prepare
     }