diff --git a/README.md b/README.md
index 9615c62..20d6884 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,8 @@ Options:
                     All nodes in a cluster runs 'spiceproxy', so it is up to the client to choose one.
                     By default, we return the node where the VM is currently running.
                     If specify http://[host]:[port] then replace proxy option in file .vv. E.g. for reverse proxy.
-  --viewer          Executable SPICE client remote viewer
+  --viewer          Executable SPICE client remote viewer.
+  --viewer-options  Send options directly SPICE Viewer (quote value).
 
 Commands:
   app-check-update  Check update application
@@ -69,6 +70,7 @@ this software aims to simplify run SPICE client from Proxmox VE using command li
 * Support multiple host for HA in --host parameter es. host[:port],host1[:port],host2[:port]
 * Check-Update and Upgrade application
 * Use Api token --api-token parameter
+* Send options directly to viewer
 
 ## Api token
 
@@ -107,6 +109,11 @@ root@debian:~# cv4pve-pepper --host=192.168.0.100 --username=root@pam --password
 * Linux /usr/bin/remote-viewer
 * Windows C:\Program Files\VirtViewer v?.?-???\bin\remote-viewer.exe
 
+## Options of remove viewer
+
+Use --viewer-options to send options to viewer.
+E.g. --viewer-options "-f" for full screen.
+
 ## Error
 
 * **no spice port**: This error appears when you have not configured the display hardware on SPICE.
diff --git a/src/Corsinvest.ProxmoxVE.Pepper/Corsinvest.ProxmoxVE.Pepper.csproj b/src/Corsinvest.ProxmoxVE.Pepper/Corsinvest.ProxmoxVE.Pepper.csproj
index c98a198..9c33dbc 100644
--- a/src/Corsinvest.ProxmoxVE.Pepper/Corsinvest.ProxmoxVE.Pepper.csproj
+++ b/src/Corsinvest.ProxmoxVE.Pepper/Corsinvest.ProxmoxVE.Pepper.csproj
@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <Version>1.4.0</Version>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <Version>1.5 .0</Version>
+    <TargetFramework>net5.0</TargetFramework>
     <AssemblyName>cv4pve-pepper</AssemblyName>
     <Company>Corsinvest Srl</Company>
     <Authors>Daniele Corsini</Authors>
@@ -19,9 +19,9 @@
     <TrimmerRootAssembly Include="System.Net.WebClient" />
 
     <!-- <ProjectReference Include="..\..\..\cv4pve-api-dotnet\src\Corsinvest.ProxmoxVE.Api.Shell\Corsinvest.ProxmoxVE.Api.Shell.csproj" /> -->
-    <PackageReference Include="Corsinvest.ProxmoxVE.Api.Shell" Version="2.8.0" />
+    <PackageReference Include="Corsinvest.ProxmoxVE.Api.Shell" Version="2.8.1" />
   </ItemGroup>
-  
+
   <Target Name="SpicNSpan" AfterTargets="Clean">
     <RemoveDir Directories="$(TargetDir)" />
     <RemoveDir Directories="$(ProjectDir)$(BaseIntermediateOutputPath)" />
diff --git a/src/Corsinvest.ProxmoxVE.Pepper/Program.cs b/src/Corsinvest.ProxmoxVE.Pepper/Program.cs
index aeb0571..db81559 100644
--- a/src/Corsinvest.ProxmoxVE.Pepper/Program.cs
+++ b/src/Corsinvest.ProxmoxVE.Pepper/Program.cs
@@ -35,12 +35,12 @@ namespace Corsinvest.ProxmoxVE.Pepper
                                       " If specify http://[host]:[port] then replace proxy option in file .vv. E.g. for reverse proxy.",
                                       CommandOptionType.SingleValue);
 
-            var optRemoteViewer = app.Option("--viewer",
-                                             "Executable SPICE client remote viewer",
-                                             CommandOptionType.SingleValue)
+            var optRemoteViewer = app.Option("--viewer", "Executable SPICE client remote viewer.", CommandOptionType.SingleValue)
                                      .DependOn(app, CommandOptionExtension.HOST_OPTION_NAME);
             optRemoteViewer.Accepts().ExistingFile();
 
+            var optViewerOptions = app.Option("--viewer-options", "Send options directly SPICE Viewer (quote value).", CommandOptionType.SingleValue);
+
             app.OnExecute(() =>
             {
                 var client = app.ClientTryLogin();
@@ -83,15 +83,17 @@ namespace Corsinvest.ProxmoxVE.Pepper
                         RedirectStandardOutput = false,
                     };
 
+                    var viewerOpts = optViewerOptions.Value() + "";
+
                     if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
                     {
                         startInfo.FileName = "/bin/bash";
-                        startInfo.Arguments = $"-c \"{optRemoteViewer.Value()} {fileName}\"";
+                        startInfo.Arguments = $"-c \"{optRemoteViewer.Value()} {fileName} {viewerOpts}\"";
                     }
                     else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                     {
                         startInfo.FileName = StringHelper.Quote(optRemoteViewer.Value());
-                        startInfo.Arguments = StringHelper.Quote(fileName);
+                        startInfo.Arguments = $"\"{fileName}\" {viewerOpts}";
                     }
 
                     var process = new Process
diff --git a/src/Corsinvest.ProxmoxVE.Pepper/build.ps1 b/src/Corsinvest.ProxmoxVE.Pepper/build.ps1
index 394c821..294007b 100644
--- a/src/Corsinvest.ProxmoxVE.Pepper/build.ps1
+++ b/src/Corsinvest.ProxmoxVE.Pepper/build.ps1
@@ -23,17 +23,20 @@ Write-Output "
  == Build System
  ========================================================="
 
-$pathNet = "Bin\Release\netcoreapp3.1"
+$pathNet = "Bin\Release\net5.0"
 
 Remove-Item -Path ".\$pathNet"  -Recurse -Force
 
 $rids = @("linux-x64", "linux-arm", "linux-arm64", "osx-x64", "win-x86", "win-x64", "win-arm", "win-arm64")
 foreach ($rid in $rids) {
-    dotnet publish -r $rid -c Release /p:PublishSingleFile=true /p:PublishTrimmed=true
+    Write-Output "========================================="
+    Write-Output "== $rid"
+    Write-Output "========================================="
+    dotnet publish -r $rid -c Release /p:PublishSingleFile=true /p:PublishTrimmed=true /p:IncludeNativeLibrariesForSelfExtract=true
     $path = "$pathNet\$rid\publish\"
 
     $fileName = Get-ChildItem $path -Exclude *.pdb -name
-    $fileDest = "$pathNet\$fileName-$rid.zip"   
+    $fileDest = "$pathNet\$fileName-$rid.zip"
     Remove-Item $fileDest -ErrorAction SilentlyContinue
     Compress-Archive $path\$fileName $fileDest
 }
\ No newline at end of file