CODEWITHSUNDEEP
delphidelphi-7
Armin Taghavizad
Armin Taghavizad

Reputation: 1685

How can I delay file deletion until next reboot from my program?

My application needs to delete some files, but this should happen until next windows startup.

What I'm doing now is to write this string value in RunOnce registry key:

Command.com /c del c:\some file.ext

but I observe a problem with paths with embedded spaces. I have to say I tried this one too: 

Command.com /c del "c:\some file.ext"

But this does not resolve the problem, but make it worst: not deletion of any file, regardless of embedded spaces!

What is the correct way to delete files from my program delayed to the next reboot?

Thanks.

Upvotes: 6

Views: 3670

Answers (3)

Ken White
Ken White

Reputation: 125708

Don't use RunOnce, and don't use Command.com. If you insist on using something, use %COMSPEC% /c instead. You have a better option, though.

Use MoveFileEx with the MOVEFILE_DELAY_UNTIL_REBOOT flag instead:

if not MoveFileEx(PChar(YourFileToDelete), nil, MOVEFILE_DELAY_UNTIL_REBOOT) then
  SysErrorMessage(GetLastError);

Upvotes: 30

R. Martinho Fernandes
R. Martinho Fernandes

Reputation: 234504

Use cmd.exe instead. That's the "new" command prompt since Windows NT.

cmd.exe /c del "c:\some file.ext"

Upvotes: 2

Eugene Mayevski 'Callback
Eugene Mayevski 'Callback

Reputation: 46060

Just a guess: Looks like you are running "DOS" command.com that works with short file names only. If you are on Win2K and later, use cmd.exe instead of command.com and yes, use double-quotes.

Upvotes: 1

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