Details: System.IO.IOException was unhandled Message="The file '.\\xxxxxxxx\\yyyyyyy\\Shellstyle.dll' already exists." Source="mscorlib" StackTrace: at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite) at System.IO.FileInfo.CopyTo(String destFileName, Boolean overwrite) at System.IO.FileInfo.CopyTo(String destFileName) at ..(String , String ) at ..(String , String ) at ..(FileInfo , String ) at ..(String , String , Boolean ) at ..(DirectoryInfo , String , String , String , Boolean ) at ..(DirectoryInfo , String , String , String , Boolean ) at ..() at ..$() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException: More details: .\bin\nLite\nlite.exe /preset:%%presets%%\%1 /path:.\xxxxxxxx\yyyyyyy nLite crashes after extracting drivertmp and sp3tmp, this time it was on theme integration. Doing attrib -R .\xxxxxxxx\yyyyyyy\*.* /S /D does not help - when started manually, everything is OK.