~nsu.tmp directory in $TEMP

sebarnolds · 15th February 2007, 08:06

Hi.

I noticed something strange about the uninstaller. When I run it, it copies itself to "$TEMP\~nsu.tmp\Au_.exe", run it and exit itself. By doing so it allows the removal of the "official" uninstaller executable.

I noticed that the "$TEMP\~nsu.tmp\Au_.exe" file is only removed after reboot. However the "$TEMP\~nsu.tmp" directory is not removed. Is it normal ? I guess it shouldn't be too annoying to stay with an empty temp directory but it would be much cleaner to delete it.

Any idea / remarks about this ?

Thanks,
Sebastien

Red Wine · 15th February 2007, 08:16

This is the way that uninstaller is programed to operate, not a big deal I guess leaving an empty dir into $TEMP.

sebarnolds · 15th February 2007, 08:18

Yeah, but it would be cleaner if the uninstaller copied itself to something like "$TEMP\$name.exe" instead of in a directory of his own... where $name is the result of a call to GetTempFileName. No ?

Sebastien

Red Wine · 15th February 2007, 08:37

I couldn't say, being open source, NSIS offers abilities to modify it in the way it suits your needs, moreover if you have added a feature yourself, you can post the source code in the patch tracker,
http://sourceforge.net/tracker/?atid...49&func=browse

sebarnolds · 15th February 2007, 08:59

Maybe we could have some input from NSIS developers as the case may have been thought and they could have thought of potential problems with that approach ?

Sebastien

{_trueparuex^} · 15th February 2007, 10:53

Quote:

Originally posted by sebarnolds
Yeah, but it would be cleaner if the uninstaller copied itself to something like "$TEMP\$name.exe" instead of in a directory of his own... where $name is the result of a call to GetTempFileName. No ?

Sebastien

In older NSIS versions it worked just like that. I don't know why it was changed, but I bet there is a reason for it.

onad · 15th February 2007, 10:56

Yes there is a reason for it. From top of my head I do not recall why, only I remember was involved back then in some scenario's that benefited having a separate directory.

pengyou · 15th February 2007, 11:38

From the Changelog for NSIS 2.08 (released on July 23rd, 2005):

Made uninstallers copy themselves into a subdirectory of the temporary directory to avoid DLLs left in the temporary directory from being loaded by the uninstaller (patch #1214319)

sebarnolds · 15th February 2007, 12:52

Hey.

Yeah, thanks for your remarks.

I wrote a patch to remove the directory too. The description can be found here :
https://sourceforge.net/tracker/?func=detail&atid=373087&aid=1660626&group_id=22049

Hope it will be useful,
Sebastien

15th February 2007, 08:16	#2
Red Wine Forum King Join Date: Mar 2006 Location: Ath. GR Posts: 2,078	This is the way that uninstaller is programed to operate, not a big deal I guess leaving an empty dir into $TEMP. Quick AVI Creator - Quick and easy convert from DVD/MPEG/AVI/MKV to AVI/MP4/MKV Quick AVI Creator entirely edited with NSIS and entirely upgraded to Unicode NSIS

15th February 2007, 08:37	#4
Red Wine Forum King Join Date: Mar 2006 Location: Ath. GR Posts: 2,078	I couldn't say, being open source, NSIS offers abilities to modify it in the way it suits your needs, moreover if you have added a feature yourself, you can post the source code in the patch tracker, http://sourceforge.net/tracker/?atid...49&func=browse Quick AVI Creator - Quick and easy convert from DVD/MPEG/AVI/MKV to AVI/MP4/MKV Quick AVI Creator entirely edited with NSIS and entirely upgraded to Unicode NSIS

15th February 2007, 10:56	#7
onad Senior Member Join Date: Dec 2004 Location: Turkey Posts: 447	Yes there is a reason for it. From top of my head I do not recall why, only I remember was involved back then in some scenario's that benefited having a separate directory. "Just do it"

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15th February 2007, 08:06	#1
sebarnolds Junior Member Join Date: Jul 2006 Posts: 14	~nsu.tmp directory in $TEMP Hi. I noticed something strange about the uninstaller. When I run it, it copies itself to "$TEMP\~nsu.tmp\Au_.exe", run it and exit itself. By doing so it allows the removal of the "official" uninstaller executable. I noticed that the "$TEMP\~nsu.tmp\Au_.exe" file is only removed after reboot. However the "$TEMP\~nsu.tmp" directory is not removed. Is it normal ? I guess it shouldn't be too annoying to stay with an empty temp directory but it would be much cleaner to delete it. Any idea / remarks about this ? Thanks, Sebastien

15th February 2007, 08:18	#3
sebarnolds Junior Member Join Date: Jul 2006 Posts: 14	Yeah, but it would be cleaner if the uninstaller copied itself to something like "$TEMP\$name.exe" instead of in a directory of his own... where $name is the result of a call to GetTempFileName. No ? Sebastien

15th February 2007, 08:59	#5
sebarnolds Junior Member Join Date: Jul 2006 Posts: 14	Maybe we could have some input from NSIS developers as the case may have been thought and they could have thought of potential problems with that approach ? Sebastien

15th February 2007, 11:38	#8
pengyou Major Dude Join Date: Mar 2003 Posts: 571	From the Changelog for NSIS 2.08 (released on July 23rd, 2005): Made uninstallers copy themselves into a subdirectory of the temporary directory to avoid DLLs left in the temporary directory from being loaded by the uninstaller (patch #1214319)

15th February 2007, 12:52	#9
sebarnolds Junior Member Join Date: Jul 2006 Posts: 14	Hey. Yeah, thanks for your remarks. I wrote a patch to remove the directory too. The description can be found here : https://sourceforge.net/tracker/?func=detail&atid=373087&aid=1660626&group_id=22049 Hope it will be useful, Sebastien