diff --git a/.gitignore b/.gitignore
index e1f78ab..e61b5f8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -252,4 +252,6 @@ paket-files/
 .idea/
 *.sln.iml
 
-out/
\ No newline at end of file
+out/
+
+ASFui/FodyWeavers.xsd
\ No newline at end of file
diff --git a/ASFui/ASFui.cs b/ASFui/ASFui.cs
index 4c26925..798ca69 100644
--- a/ASFui/ASFui.cs
+++ b/ASFui/ASFui.cs
@@ -501,7 +501,9 @@ private void btnAPI_Click(object sender, EventArgs e)
         private string sendCommand(string str) {
             string ret = Util.SendCommand(str);
             if (true){//!Settings.Default.IsLocal) {
-                rtbOutput.AppendText(ret + "\n");
+                rtbOutput.Invoke(new MethodInvoker(() => {//also needed to avoid errors in debug mode
+                    rtbOutput.AppendText(ret + "\n");
+                }));
             }
             if (!"api".Equals(str)) { // don't know, why you did not had that here, but just to be sure.
                 rtbOutput.Invoke(new MethodInvoker(() => {// In debug mode I get errors here, if I do not use invoke...
diff --git a/ASFui/Properties/AssemblyInfo.cs b/ASFui/Properties/AssemblyInfo.cs
index 5c4bc12..fe159c7 100644
--- a/ASFui/Properties/AssemblyInfo.cs
+++ b/ASFui/Properties/AssemblyInfo.cs
@@ -33,5 +33,5 @@
 // Puede especificar todos los valores o usar los valores predeterminados de número de compilación y de revisión 
 // mediante el carácter '*', como se muestra a continuación:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.6.3.0")]
-[assembly: AssemblyFileVersion("0.6.3.0")]
+[assembly: AssemblyVersion("0.6.4.0")]
+[assembly: AssemblyFileVersion("0.6.4.0")]
diff --git a/ASFui/Util.cs b/ASFui/Util.cs
index 73d370a..87dadaa 100644
--- a/ASFui/Util.cs
+++ b/ASFui/Util.cs
@@ -27,11 +27,14 @@ public static string SendCommand(string command)
 			string address = GetEndpointAddress();
 			string msg="";
 			using (WebClient webclient = new WebClient()) {
-				if(!address.Contains("#"))
-					msg= webclient.UploadString(address + System.Net.WebUtility.UrlEncode(command), String.Empty);
+                webclient.Encoding = System.Text.Encoding.UTF8;
+                webclient.Headers[HttpRequestHeader.ContentType] = "application/json";
+
+                if (!address.Contains("#"))
+					msg= webclient.UploadString(address + Uri.EscapeUriString(command), String.Empty);
 				else {
 					var regex = new System.Text.RegularExpressions.Regex(System.Text.RegularExpressions.Regex.Escape("#"));
-					msg= webclient.UploadString(regex.Replace(address, System.Net.WebUtility.UrlEncode(command), 1), String.Empty);
+					msg= webclient.UploadString(regex.Replace(address, Uri.EscapeUriString(command), 1), String.Empty);
 				}	
 			}
 			dynamic tmp= JsonConvert.DeserializeObject(msg);
diff --git a/version.txt b/version.txt
index 1aa3ee4..0852b2a 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.6.3.0
\ No newline at end of file
+0.6.4.0
\ No newline at end of file