Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.

C:\windows\system32>cd platex
指定されたパスが見つかりません。

C:\windows\system32>platex ex1
This is e-pTeX, Version 3.1415926-p3.4-110825-2.6 (sjis) (TeX Live 2013/W32TeX)
 restricted \write18 enabled.
entering extended mode
! I can't find file `ex1'.
<*> ex1

(Press Enter to retry, or Control-Z to exit)
Please type another input file name: