happyhippo
9th February 2012 13:23 UTC

Deleting Fille after FileClose
  Hi Folks,

I try to delete a file after I have read it with my NSIS installer but the file is not deleted. If the installer is still running and I try to delete the file manually I receive an error message, saying the file is still in use.

My code looks like this:

FileOpen$0 "$EXEDIR\temp\test.cfg" r

FileRead$0 $1

>...

>FileClose $0

Delete "$EXEDIR\temp\test.cfg" 

After some queries I have figured out the following: If I add a "Delete $0" between FileOpen and FileClose, the installer does now delete the file:

FileOpen$0 "$EXEDIR\temp\test.cfg" r

FileRead$0 $1

>...

>Delete $0

FileClose$0

Delete "$EXEDIR\temp\test.cfg" 

Can anybody explain why the file is not deleted with the first version?

bennaloz
10th February 2012 10:57 UTC

You just need to use /REBOOTOK option to delete on reboot that file. Anyway I don't know the reasone of that behaviour. =P

happyhippo
22nd February 2012 14:40 UTC

For all, who face the same problem, the following solved the problem. I added a sleep argument after closing the file and was then able to delete it:

FileOpen$0 "$EXEDIR\temp\test.cfg" r 

FileRead$0 $1 

>... 

>FileClose $0 

Sleep 2000

Delete "$EXEDIR\temp\test.cfg"