diff --git a/src/api/index.ts b/src/api/index.ts
index 87e434f0..cd575a78 100644
--- a/src/api/index.ts
+++ b/src/api/index.ts
@@ -188,6 +188,11 @@ export class AtelierAPI {
               return this.cookies;
             }
             const data = response.body;
+            /// deconde encoded content
+            if (data.result && data.result.enc && data.result.content) {
+              data.result.enc = false;
+              data.result.content = Buffer.from(data.result.content.join(""), "base64");
+            }
             if (data.console) {
               outputConsole(data.console);
             }
diff --git a/src/extension.ts b/src/extension.ts
index 7c1a2bc4..037c67ab 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -179,10 +179,9 @@ export async function activate(context: vscode.ExtensionContext): Promise<void>
   });
 
   workspace.onDidSaveTextDocument(file => {
-    if (!languages.includes(file.languageId)) {
-      return;
+    if (schemas.includes(file.uri.scheme) || languages.includes(file.languageId)) {
+      vscode.commands.executeCommand("vscode-objectscript.compile");
     }
-    vscode.commands.executeCommand("vscode-objectscript.compile");
   });
 
   vscode.window.onDidChangeActiveTextEditor((textEditor: vscode.TextEditor) => {
diff --git a/src/providers/FileSystemPovider/FileSystemProvider.ts b/src/providers/FileSystemPovider/FileSystemProvider.ts
index 0b404cb5..12f5a57d 100644
--- a/src/providers/FileSystemPovider/FileSystemProvider.ts
+++ b/src/providers/FileSystemPovider/FileSystemProvider.ts
@@ -1,5 +1,6 @@
 import * as path from "path";
 import * as vscode from "vscode";
+import * as url from "url";
 import { AtelierAPI } from "../../api";
 import { Directory } from "./Directory";
 import { File } from "./File";
@@ -26,17 +27,36 @@ export class FileSystemProvider implements vscode.FileSystemProvider {
   public async readDirectory(uri: vscode.Uri): Promise<[string, vscode.FileType][]> {
     const api = new AtelierAPI(uri);
     const parent = await this._lookupAsDirectory(uri);
-    const sql = `CALL %Library.RoutineMgr_StudioOpenDialog(?,,,,,,0)`;
-    const folder = uri.path === "/" ? "/" : uri.path.replace(/\//g, ".") + "/";
-    const spec = folder.slice(1) + "*.cls,*.inc,*.int,*.mac";
+    const sql = `CALL %Library.RoutineMgr_StudioOpenDialog(?,?,?,?,?,?,?)`;
+    const { query } = url.parse(decodeURIComponent(uri.toString()), true);
+    const type = String(query && query.type).toLowerCase() || "all";
+    const csp = query.csp === "" || query.csp === "1";
+    let filter = query.filter || "";
+    if (csp) {
+      filter = filter || "*";
+    } else if (type === "rtn") {
+      filter = "*.inc,*.int,*.mac";
+    } else if (type === "cls") {
+      filter = "*.cls";
+    } else {
+      filter = query.filter || "*.cls,*.inc,*.int,*.mac";
+    }
+    const folder = csp ? (uri.path.endsWith("/") ? uri.path : uri.path + "/") : uri.path.replace(/\//g, ".");
+    const spec = csp ? folder + filter : folder.slice(1) + filter;
+    const dir = "1";
+    const orderBy = "1";
+    const system = api.ns === "%SYS" ? "1" : "0";
+    const flat = String(query.flat) || "0";
+    const notStudio = "0";
+    const generated = String(query.generated) || "0";
     return api
-      .actionQuery(sql, [spec])
+      .actionQuery(sql, [spec, dir, orderBy, system, flat, notStudio, generated])
       .then(data => data.result.content || [])
       .then(data =>
         data.map(item => {
           const name = item.Name;
           const fullName = folder === "" ? name : folder + "/" + name;
-          if (item.IsDirectory.length) {
+          if (item.Type === "10" || item.Type === "9") {
             parent.entries.set(name, new Directory(name, fullName));
             return [name, vscode.FileType.Directory];
           } else {
@@ -76,7 +96,9 @@ export class FileSystemProvider implements vscode.FileSystemProvider {
       overwrite: boolean;
     }
   ): void | Thenable<void> {
-    const fileName = uri.path.slice(1).replace(/\//g, ".");
+    const { query } = url.parse(decodeURIComponent(uri.toString()), true);
+    const csp = query.csp === "" || query.csp === "1";
+    const fileName = csp ? uri.path : uri.path.slice(1).replace(/\//g, ".");
     if (fileName.startsWith(".")) {
       return;
     }
@@ -143,10 +165,9 @@ export class FileSystemProvider implements vscode.FileSystemProvider {
   }
 
   private async _lookupAsFile(uri: vscode.Uri): Promise<File> {
-    // if (!uri.path.match(/\.\w+$/)) {
-    //   return Promise.resolve(new Directory(uri.path))
-    // }
-    const fileName = uri.path.slice(1).replace(/\//g, ".");
+    const { query } = url.parse(decodeURIComponent(uri.toString()), true);
+    const csp = query.csp === "" || query.csp === "1";
+    const fileName = csp ? uri.path : uri.path.slice(1).replace(/\//g, ".");
     if (fileName.startsWith(".")) {
       throw vscode.FileSystemError.FileNotFound();
     }
@@ -155,7 +176,16 @@ export class FileSystemProvider implements vscode.FileSystemProvider {
     return api
       .getDoc(fileName)
       .then(data => data.result)
-      .then(({ ts, content }) => new File(name, fileName, ts, content.join("\n").length, content.join("\n")))
+      .then(
+        ({ ts, content }) =>
+          new File(
+            name,
+            fileName,
+            ts,
+            Array.isArray(content) ? content.join("\n").length : content.length,
+            Array.isArray(content) ? content.join("\n") : content
+          )
+      )
       .then(entry =>
         this._lookupParentDirectory(uri).then(parent => {
           parent.entries.set(name, entry);
diff --git a/src/utils/index.ts b/src/utils/index.ts
index 6a90cf81..46ae8ac4 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -1,5 +1,6 @@
 import fs = require("fs");
 import path = require("path");
+import * as url from "url";
 import { execSync } from "child_process";
 import * as vscode from "vscode";
 import { config, schemas, workspaceState } from "../extension";
@@ -22,7 +23,10 @@ export interface CurrentFile {
 
 export function currentFile(document?: vscode.TextDocument): CurrentFile {
   document = document || (vscode.window.activeTextEditor.document ? vscode.window.activeTextEditor.document : null);
-  if (!document || !document.fileName || !document.languageId || !document.languageId.startsWith("objectscript")) {
+  if (
+    !schemas.includes(document.uri.scheme) &&
+    (!document || !document.fileName || !document.languageId || !document.languageId.startsWith("objectscript"))
+  ) {
     return null;
   }
   const uri = document.uri;
@@ -31,20 +35,16 @@ export function currentFile(document?: vscode.TextDocument): CurrentFile {
   const fileExt = fileName.match(/\.(\w+)$/)[1].toLowerCase();
   let name = "";
   let ext = "";
-  if (fileExt === "cls") {
+  const { query } = url.parse(decodeURIComponent(uri.toString()), true);
+  const csp = query.csp === "" || query.csp === "1";
+  if (csp) {
+    name = fileName;
+  } else if (fileExt === "cls") {
     const match = content.match(/^Class (%?\w+(?:\.\w+)+)/im);
     if (match) {
       name = match[1];
       ext = "cls";
     }
-  } else if (fileExt === "csp") {
-    name =
-      config().conn.label.toLowerCase() +
-      fileName
-        .split(config().conn.label.toLowerCase())[1]
-        .replace(/\\/g, "/")
-        .replace(".csp", "");
-    ext = "csp";
   } else {
     const match = content.match(/^ROUTINE ([^\s]+)(?:\s+\[.*Type=([a-z]{3,}))?/i);
     name = match[1];
@@ -53,7 +53,7 @@ export function currentFile(document?: vscode.TextDocument): CurrentFile {
   if (!name) {
     return null;
   }
-  name += "." + ext;
+  name += ext ? "." + ext : "";
 
   return {
     content,