diff --git a/pyproject.toml b/pyproject.toml
index d84c7ce..877c05b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "wce-crm"
-version = "0.1.1dev2"
+version = "0.1.1dev4"
 description = "GUI for CRM of NAFKA project with WCE"
 authors = [
     {name = "d-opt GmbH, resp. Florian Förster", email = "f.foerster@d-opt.com"},
@@ -71,7 +71,7 @@ directory = "reports/coverage"
 
 
 [tool.bumpversion]
-current_version = "0.1.1dev2"
+current_version = "0.1.1dev4"
 parse = """(?x)
     (?P<major>0|[1-9]\\d*)\\.
     (?P<minor>0|[1-9]\\d*)\\.
diff --git a/scripts/Launch_App_Fallback.bat b/scripts/Launch_App_Fallback.bat
new file mode 100644
index 0000000..48e2d41
--- /dev/null
+++ b/scripts/Launch_App_Fallback.bat
@@ -0,0 +1,6 @@
+@echo off
+:: 1. Safely navigate to the exact folder this batch file is sitting in
+cd /d "%~dp0"
+
+:: 2. Launch the app in the background and instantly close the command prompt
+start "" "python\pythonw.exe" -m my_package.gui
\ No newline at end of file
diff --git a/scripts/build.ps1 b/scripts/build.ps1
index 555c837..b66bc4e 100644
--- a/scripts/build.ps1
+++ b/scripts/build.ps1
@@ -19,6 +19,20 @@ if ($? -eq $false){
 }
 Write-Output "Deleted outstanding artifacts successfully"
 
+
+Write-Output "Create data folder..."
+$pattern = "dopt_nafka_wce-crm_v*"
+$data_folder = Join-Path -Path $ENV_PATH -ChildPath 'data'
+
+if (-not (Test-Path -Path $data_folder)){
+    Write-Output "[PWSH] Data path not existing. Create..."
+    New-Item -Path $data_folder -ItemType Directory
+}
+else {
+    Write-Output "Data path already exists."
+}
+
+
 Write-Output "Building package..."
 .\scripts\publish.ps1
 if ($? -eq $false){
@@ -56,17 +70,6 @@ if ($? -eq $false){
 }
 Write-Output "Successfully installed package"
 
-# copy CLI file
-# TODO add startup file
-# Write-Output "Copying CLI script file..."
-# $cli_path = Join-Path -Path $SRC_PATH -ChildPath 'cli.py'
-# Copy-Item -Path $cli_path -Destination $PY_PATH -Force
-# if ($? -eq $false){
-#     Write-Output "[PWSH] Exiting script because there were errors while copying the CLI script file"
-#     Exit
-# }
-# Write-Output "Copied CLI script file successfully"
-
 # copy database file
 Write-Output "Copying database files..."
 $copy_file = Join-Path -Path $SRC_PATH -ChildPath 'data/db/wce_grunderfassung.db'
@@ -97,18 +100,12 @@ Write-Output "Copied ENV file successfully"
 
 # copy startup script files
 Write-Output "Copying startup scripts..."
-$copy_file = Join-Path -Path $SRC_PATH -ChildPath 'scripts/start.*'
+$copy_file = Join-Path -Path $SRC_PATH -ChildPath 'scripts/start.bat'
 Copy-Item -Path $copy_file -Destination $ENV_PATH -Force
 if ($? -eq $false){
     Write-Output "[PWSH] Exiting script because there were errors while copying startup scripts"
     Exit
 }
-# $copy_file = Join-Path -Path $SRC_PATH -ChildPath 'data/db/wce_crm.db'
-# Copy-Item -Path $copy_file -Destination $dest_file -Force
-# if ($? -eq $false){
-#     Write-Output "[PWSH] Exiting script because there were errors while copying database 'CRM'"
-#     Exit
-# }
 Write-Output "Copied startup scripts successfully"
 
 
diff --git a/scripts/start.bat b/scripts/start.bat
index e0b18c2..be1dd97 100644
--- a/scripts/start.bat
+++ b/scripts/start.bat
@@ -1,3 +1,7 @@
 @echo off
-cd /d "%~dp0"
-start "" "python\pythonw.exe" -m wce_crm.gui
\ No newline at end of file
+:: 1. Navigate directly into the python environment folder
+cd /d "%~dp0python"
+@REM cd /d "python"
+@REM python.exe -m my_package.gui
+:: 2. Launch pythonw silently
+start "" "pythonw.exe" -m wce_crm.gui
\ No newline at end of file
diff --git a/scripts/start.vbs b/scripts/start.vbs
index 3126d6f..4b9cd24 100644
--- a/scripts/start.vbs
+++ b/scripts/start.vbs
@@ -1,13 +1,17 @@
 Set WshShell = CreateObject("WScript.Shell")
 Set FSO = CreateObject("Scripting.FileSystemObject")
 
-strScriptDir = FSO.GetParentFolderName(WScript.ScriptFullName)
-WshShell.CurrentDirectory = strScriptDir
+' 1. Get the exact path to the python_env folder
+strEnvDir = FSO.GetParentFolderName(WScript.ScriptFullName) & "\python"
 
-pythonExe = strScriptDir & "\python\python.exe"
+' 2. Set the working directory (crucial so pythonw.exe finds its DLLs)
+WshShell.CurrentDirectory = strEnvDir
 
-' Use cmd.exe /c (close when done) as a trusted bridge to launch the module
-runCommand = "cmd.exe /c " & Chr(34) & pythonExe & Chr(34) & " -m wce_crm.gui"
+' 3. Get the ABSOLUTE path to the executable, not just the file name
+pythonExe = strEnvDir & "\pythonw.exe"
 
-' Set back to 0 (Hidden). 
+' 4. Build the command using the absolute path
+runCommand = Chr(34) & pythonExe & Chr(34) & " -m wce_crm.gui"
+
+' 5. Run it completely hidden
 WshShell.Run runCommand, 0, False
\ No newline at end of file