Force all printers through universal installer

- Removed specific installer logic - all printers now use PrinterInstaller.exe
- Fixed /PRINTER= parameter quoting: /PRINTER="Name1,Name2" (quotes around value)
- Single call with comma-separated printer names

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

install_printer.asp

@@ -204,17 +204,15 @@ Else
     Set universalPrinters = Server.CreateObject("Scripting.Dictionary")
     universalNames = ""
 
+    ' Force ALL printers through universal installer (ignore specific installers)
     For Each printerKey In printers.Keys
         Set printer = printers(printerKey)
-        If printer("installpath") <> "" Then
-            specificInstallers.Add printerKey, printer
-        Else
         universalPrinters.Add printerKey, printer
         If universalNames <> "" Then universalNames = universalNames & ","
         universalNames = universalNames & printer("standardname")
-        End If
     Next
 
+    ' Skip specific installers - all printers use universal installer now
     ' Process printers with specific installers first (silent mode)
     For Each printerKey In specificInstallers.Keys
         Set printer = specificInstallers(printerKey)