diff --git a/Cargo.lock b/Cargo.lock
index 976993a..a1e16ba 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,4 +1,108 @@
+[[package]]
+name = "Inflector"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "aho-corasick"
+version = "0.6.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "cfg-if"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "lazy_static"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "memchr"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf8-ranges 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "thread_local"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "ucd-util"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "ui-compiler"
 version = "0.1.0"
+dependencies = [
+ "Inflector 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
+[[package]]
+name = "utf8-ranges"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "version_check"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[metadata]
+"checksum Inflector 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4467f98bb61f615f8273359bf1c989453dfc1ea4a45ae9298f1dcd0672febe5d"
+"checksum aho-corasick 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)" = "68f56c7353e5a9547cbd76ed90f7bb5ffc3ba09d4ea9bd1d8c06c8b1142eeb5a"
+"checksum cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0c4e7bb64a8ebb0d856483e1e682ea3422f883c5f5615a90d51a2c82fe87fdd3"
+"checksum lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca488b89a5657b0a2ecd45b95609b3e848cf1755da332a0da46e2b2b1cb371a7"
+"checksum libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)" = "76e3a3ef172f1a0b9a9ff0dd1491ae5e6c948b94479a3021819ba7d860c8645d"
+"checksum memchr 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4b3629fe9fdbff6daa6c33b90f7c08355c1aca05a3d01fa8063b822fcf185f3b"
+"checksum regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2069749032ea3ec200ca51e4a31df41759190a88edca0d2d86ee8bedf7073341"
+"checksum regex-syntax 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "747ba3b235651f6e2f67dfa8bcdcd073ddb7c243cb21c442fc12395dfcac212d"
+"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
+"checksum ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd2be2d6639d0f8fe6cdda291ad456e23629558d466e2789d2c3e9892bda285d"
+"checksum utf8-ranges 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd70f467df6810094968e2fce0ee1bd0e87157aceb026a8c083bcf5e25b9efe4"
+"checksum version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "7716c242968ee87e5542f8021178248f267f295a5c4803beae8b8b7fd9bc6051"
diff --git a/Cargo.toml b/Cargo.toml
index c8a8e6c..367d7cc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,3 +4,4 @@ version = "0.1.0"
 authors = ["Jáchym Toušek <enumag@gmail.com>"]
 
 [dependencies]
+Inflector = "*"
diff --git a/src/main.rs b/src/main.rs
index df95702..a2de597 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,9 +1,12 @@
+extern crate inflector;
+
 use std::env;
 use std::process::Command;
 use std::fs;
 use std::path::Path;
 use std::collections::HashMap;
 use std::process;
+use inflector::Inflector;
 
 fn main() {
     let args: Vec<String> = env::args().collect();
@@ -23,16 +26,34 @@ fn main() {
         process::exit(1);
     }
 
+    let mut suffixes = HashMap::new();
+    suffixes.insert("win".to_string(), "UI");
+    suffixes.insert("mac".to_string(), "UI_UNIX");
+
+    if chapter == "tatarigoroshi" {
+        suffixes.insert("win-mg".to_string(), "UI_MG");
+        suffixes.insert("mac-mg".to_string(), "UI_UNIX-MG");
+    }
+
+    if !suffixes.contains_key(platform) {
+        println!("Unknown platform");
+        process::exit(2);
+    }
+
     let arc_number = chapters.get(chapter).unwrap();
     let arc_type = if arc_number <= &4 { "question_arcs" } else { "answer_arcs" };
     let assets = format!("assets/vanilla/{}/{}/sharedassets0.assets", chapter, platform);
     let directory_assets = "output/assets";
     let directory_data = format!("output/HigurashiEp{:02}_Data", arc_number);
     let emip = format!("{}/{}-{}.emip", &directory_data, &chapter, &platform);
+    let archive = format!("{}-{}.7z", &chapter.to_title_case(), suffixes.get(platform).unwrap());
 
     if Path::new(&emip).exists() {
         fs::remove_file(&emip).expect("Failed to remove file");
     }
+    if Path::new(&archive).exists() {
+        fs::remove_file(&archive).expect("Failed to remove file");
+    }
     if Path::new(&directory_assets).exists() {
         fs::remove_dir_all(&directory_assets).expect("Failed to remove directory");
     }
@@ -108,17 +129,29 @@ fn main() {
     println!();
 
     // 6. apply emip
-    let status = Command::new("AssetBundleExtractor.exe")
+    let status = Command::new("AssetBundleExtractor")
         .arg("applyemip")
         .arg(&emip)
         .arg("output")
         .status()
-        .expect("failed to execute AssetBundleExtractor.exe");
+        .expect("failed to execute AssetBundleExtractor");
 
-    println!("{}", status.to_string());
+    assert!(status.success());
 
     fs::remove_file(format!("{}/sharedassets0.assets.bak0000", &directory_data)).expect("Failed to remove file");
     fs::remove_file(&emip).expect("Failed to remove file");
+
+    // 7. pack with 7xip
+    let status = Command::new("7za")
+        .current_dir("output")
+        .arg("a")
+        .arg("-t7z")
+        .arg(&archive)
+        .arg(format!("../{}", &directory_data))
+        .status()
+        .expect("failed to execute 7ze");
+
+    assert!(status.success());
 }
 
 fn copy_images(from: &str, to: &str) {