Thought Snippets: 2014

Tuesday, February 4, 2014

A Command Extension Conundrum

So far as I know, the documented way to test whether command extensions are enabled is something like the following.

echo %0, Version 1.00 Starting

if CMDEXTVERSION 1 goto CHK_REQ1

echo.

echo This script requires command extensions to be enabled. Since they are

echo enabled, by default, they have been disabled, directly or by GPO.

goto ERR_DONE

:CHK_REQ1

For the first time in a long while, I temporarily disabled command extensions to perform a special test. To verify that command extensions were actually disabled, I ran a command script that begins by verifying that command extensions are enabled. I expected the error message listed above to be displayed. This is what actually happened.

C:\bin>CopyOneToAll.CMD

CopyOneToAll.CMD, Version 1.00 Starting

1 was unexpected at this time.

C:\bin>

This isn’t exactly what I expected.

Since I can complete the test without further investigation, the mystery has been put aside for now.

David A. Gray

Chief Wizard

WizardWrx

Email: dgray@wizardwrx.com

WWW: www.wizardwrx.com

Cell: +1 (817) 298-0867

Land: +1 (817) 812-3041

4014 Double Tree Trail

Irving, TX 75061-3936

Saturday, January 25, 2014

Retrieving Previous Version of File from Windows Recycle Bin

Today, when I went in search of a previous version of a file that I had just sent to the Recycle Bin, I noticed that the context menu has a Cut option. Since I had already reused the file name in the directory from which I deleted the other version, I decided to see what happened when I cut the file.