diff --git a/app/app.component.ts b/app/app.component.ts
index 7cde15f..79d9816 100644
--- a/app/app.component.ts
+++ b/app/app.component.ts
@@ -1,25 +1,26 @@
 import {Component, OnInit} from "@angular/core";
-import {ConverterregistryService} from "./converterregistry.service";
-import {InputcomponentmanagerService} from "./InputcomponentmanagerService";
+import {ConverterRegistryService} from "./converterregistry.service";
+import {InputComponentManagerService} from "./inputcomponentmanager.service";
 import {Converter} from "./converter/converter";
+import {NativeLibraryWrapperService} from "./nativelibrarywrapper.service";
 
 @Component({
     moduleId: module.id,
     selector: "den-app",
     templateUrl: "app.component.html",
     styleUrls: ["app.component.css"],
-    providers: [ConverterregistryService, InputcomponentmanagerService]
+    providers: [ConverterRegistryService, InputComponentManagerService, NativeLibraryWrapperService]
 })
 export class AppComponent extends OnInit {
     public steps:any[] = [];
     public converters:Converter[] = [];
 
-    constructor(private converterregistryService:ConverterregistryService, private inputcomponentmanagerService:InputcomponentmanagerService) {
+    constructor(private converterRegistryService:ConverterRegistryService, private inputComponentManagerService:InputComponentManagerService) {
         super();
     }
 
     convert(step:any, $event:any):void {
-        step.selectedConverter = this.converterregistryService.getConverter($event.target.selectedOptions[0].id);
+        step.selectedConverter = this.converterRegistryService.getConverter($event.target.selectedOptions[0].id);
         this.update(step);
     }
 
@@ -44,7 +45,7 @@ export class AppComponent extends OnInit {
                 step.message = "";
                 step.error = false;
                 if (result !== "") {
-                    let nextComponent:any = this.inputcomponentmanagerService.getNext(step);
+                    let nextComponent:any = this.inputComponentManagerService.getNext(step);
                     nextComponent.content = result;
                     this.update(nextComponent);
                 }
@@ -53,8 +54,8 @@ export class AppComponent extends OnInit {
     }
 
     ngOnInit():void {
-        this.converters = this.converterregistryService.getAllConverters();
-        this.steps = this.inputcomponentmanagerService.getAllComponents();
-        this.inputcomponentmanagerService.getFirst();
+        this.converters = this.converterRegistryService.getAllConverters();
+        this.steps = this.inputComponentManagerService.getAllComponents();
+        this.inputComponentManagerService.getFirst();
     }
 }
diff --git a/app/converter/quotedprintabledecoder.ts b/app/converter/quotedprintabledecoder.ts
index e34c238..6787ff1 100644
--- a/app/converter/quotedprintabledecoder.ts
+++ b/app/converter/quotedprintabledecoder.ts
@@ -1,9 +1,9 @@
 import {Converter} from "./converter";
-
-declare var utf8:any;
-declare var quotedPrintable:any;
+import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
 
 export class QuotedPrintableDecoder implements Converter {
+    constructor(private nativeLibraryWrapperService:NativeLibraryWrapperService) {
+    }
 
     getDisplayname():string {
         return "Decode quoted printable";
@@ -14,6 +14,6 @@ export class QuotedPrintableDecoder implements Converter {
     }
 
     convert(input:string):string {
-        return utf8.decode(quotedPrintable.decode(input));
+        return this.nativeLibraryWrapperService.utf8.decode(this.nativeLibraryWrapperService.quotedPrintable.decode(input));
     }
 }
diff --git a/app/converter/quotedprintableencoder.ts b/app/converter/quotedprintableencoder.ts
index 8f87109..048dbc6 100644
--- a/app/converter/quotedprintableencoder.ts
+++ b/app/converter/quotedprintableencoder.ts
@@ -1,9 +1,9 @@
 import {Converter} from "./converter";
-
-declare var utf8:any;
-declare var quotedPrintable:any;
+import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
 
 export class QuotedPrintableEncoder implements Converter {
+    constructor(private nativeLibraryWrapperService:NativeLibraryWrapperService) {
+    }
 
     getDisplayname():string {
         return "Encode quoted printable";
@@ -14,6 +14,6 @@ export class QuotedPrintableEncoder implements Converter {
     }
 
     convert(input:string):string {
-        return quotedPrintable.encode(utf8.encode(input));
+        return this.nativeLibraryWrapperService.quotedPrintable.encode(this.nativeLibraryWrapperService.utf8.encode(input));
     }
 }
diff --git a/app/converterregistry.service.ts b/app/converterregistry.service.ts
index a3fa684..e5054a1 100644
--- a/app/converterregistry.service.ts
+++ b/app/converterregistry.service.ts
@@ -14,12 +14,13 @@ import {DecToBinConverter} from "./converter/dectobinconverter";
 import {BinToDecConverter} from "./converter/bintodecconverter";
 import {QuotedPrintableDecoder} from "./converter/quotedprintabledecoder";
 import {QuotedPrintableEncoder} from "./converter/quotedprintableencoder";
+import {NativeLibraryWrapperService} from "./nativelibrarywrapper.service";
 
 @Injectable()
-export class ConverterregistryService {
+export class ConverterRegistryService {
     private converters:Converter[] = [];
 
-    constructor() {
+    constructor(private wrapper:NativeLibraryWrapperService) {
         this.init();
     }
 
@@ -49,8 +50,8 @@ export class ConverterregistryService {
         this.registerConverter(new HexToDecConverter());
         this.registerConverter(new DecToBinConverter());
         this.registerConverter(new BinToDecConverter());
-        this.registerConverter(new QuotedPrintableEncoder());
-        this.registerConverter(new QuotedPrintableDecoder());
+        this.registerConverter(new QuotedPrintableEncoder(this.wrapper));
+        this.registerConverter(new QuotedPrintableDecoder(this.wrapper));
     }
 
     private registerConverter(converter:Converter):void {
diff --git a/app/inputarea.component.ts b/app/inputarea.component.ts
index d3a3e1e..d6164ad 100644
--- a/app/inputarea.component.ts
+++ b/app/inputarea.component.ts
@@ -1,7 +1,7 @@
 import {Component, OnInit} from "@angular/core";
-import {ConverterregistryService} from "./converterregistry.service";
+import {ConverterRegistryService} from "./converterregistry.service";
 import {Converter} from "./converter/converter";
-import {InputcomponentmanagerService} from "./InputcomponentmanagerService";
+import {InputComponentManagerService} from "./inputcomponentmanager.service";
 
 
 @Component({
@@ -15,19 +15,19 @@ export class InputareaComponent extends OnInit {
     public content:string = '';
     private selectedConverter:Converter;
 
-    constructor(private converterregistryService:ConverterregistryService, private inputcomponentmanagerService:InputcomponentmanagerService) {
+    constructor(private converterRegistryService:ConverterRegistryService, private inputComponentManagerService:InputComponentManagerService) {
         super();
     }
 
     public convert(e):void {
-        this.selectedConverter = this.converterregistryService.getConverter(e.target.selectedOptions[0].id);
+        this.selectedConverter = this.converterRegistryService.getConverter(e.target.selectedOptions[0].id);
         this.update();
     }
 
     public update():void {
         if (this.selectedConverter !== undefined) {
             let result:string = this.selectedConverter.convert(this.content);
-            let nextComponent:InputareaComponent = this.inputcomponentmanagerService.getNext(this);
+            let nextComponent:InputareaComponent = this.inputComponentManagerService.getNext(this);
             if (nextComponent !== undefined) {
                 nextComponent.setContent(result);
             }
@@ -40,8 +40,8 @@ export class InputareaComponent extends OnInit {
     }
 
     ngOnInit():void {
-        this.converters = this.converterregistryService.getAllConverters();
+        this.converters = this.converterRegistryService.getAllConverters();
         this.selectedConverter = undefined;
-        this.inputcomponentmanagerService.register(this);
+        this.inputComponentManagerService.register(this);
     }
 }
diff --git a/app/InputcomponentmanagerService.ts b/app/inputcomponentmanager.service.ts
similarity index 95%
rename from app/InputcomponentmanagerService.ts
rename to app/inputcomponentmanager.service.ts
index a1717b8..a15b97c 100644
--- a/app/InputcomponentmanagerService.ts
+++ b/app/inputcomponentmanager.service.ts
@@ -1,6 +1,7 @@
 import {Injectable} from "@angular/core";
+
 @Injectable()
-export class InputcomponentmanagerService {
+export class InputComponentManagerService {
     private components:any[] = [];
 
     public constructor() {
diff --git a/app/nativelibrarywrapper.service.ts b/app/nativelibrarywrapper.service.ts
new file mode 100644
index 0000000..6a7d840
--- /dev/null
+++ b/app/nativelibrarywrapper.service.ts
@@ -0,0 +1,15 @@
+import {Injectable} from "@angular/core";
+
+declare var utf8:any;
+declare var quotedPrintable:any;
+
+@Injectable()
+export class NativeLibraryWrapperService {
+    public utf8:any;
+    public quotedPrintable:any;
+
+    constructor() {
+        this.utf8 = utf8;
+        this.quotedPrintable = quotedPrintable;
+    }
+}
\ No newline at end of file