Problems with TEMP and TMP environment variables

[gs12]

Hello,
I'm using Total Commander Version 7.56a 32 bit (16.12.2010)
on Windows 7 SP1 64bit.

Often but not reproducable I get error messages that the path "C:\Users\SYSTEM\AppData\Local\Temp\_tc" is not available when viewing files in an archive with Lister.

If I open a command shell from TC afterwards the TEMP and TMP environment variables have wrong values.
The should be set to "C:\Users\MyAccountName\AppData\Local\Temp" but are set to "C:\Users\SYSTEM\AppData\Local\Temp".
Then I restart TC and the problem disappaers.

My TEMP and TMP environment variables are set to "C:\Users\%USERNAME%\AppData\Local\Temp".
Is this a problem for TC ?

I will change it to "C:\Users\MyAccountName\AppData\Local\Temp" and see if this fixes the problem.

Best regards.
gs12

[HolgerK]

Do you use a trick like this:
http://www.howtogeek.com/howto/windows-vista/create-administrator-mode-shortcuts-without-uac-prompts-in-windows-vista/
to start TC?

In this case you should control whether you have selected the system-account instead of your own account (see the second picture from the linked site).

Regards
Holger

[ghisler(Author)]

TC may be getting notifications from the system about changed environment variables. You can turn this off by adding the line
UpdateEnv=0

to wincmd.ini section [Configuration].

[MVV]

gs12, maybe you're using some TC plugin (maybe some packer plugin) that changes variables TEMP and TMP to wrong values? I've never seen such strange thing myself.

As I see, my processes that are started with SYSTEM account have C:\Windows\Temp folder as TEMP and TMP, not C:\Users\SYSTEM\AppData\Local\Temp.
And, tasks that are started by task sheduler with my account have correct variable values. I have Win7x64SP1 too.

[gs12]

Do you use a trick like this:
URL
to start TC?

No TC is started with a normal shortcut.

Since I changed the setting of the TMP and TEMP variables as announced (avoid %USERNAME%) the problem did not occur anymore.