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Fabio · Guest

I need to create an install for my application, that should have
updated some DLLs, but when I try to delete the old DLL the windows
doesn't leave.
how do I detect and I delete files/dlls that are in execution or
openeds?

Dragon Lord · Guest

2 Ways, Try to delete it, and if it doesn't delete, then you A) don't have
permissions and B) its being used. or #2, write a kernel driver, or use
another, that keeps track of opened file handles and the names to them. I
know Windows 2k/XP's oh.exe requires that you install a kernel level driver,
and "FileMon" by SysInternals. Also, you could try

var
MyFile: TFileStream;

MyFile := TFileStream.Create(Filename, fmOpenRead or fmShareExclusive);

that should raise an Exception if you don't have permissions or the file is
opened by another process. There is not a nice way of getting the
program(s) that have that file opened unless you install a kernel driver to
do it. But I have some delphi code that will copy a resource (in your
executable) to the disk, and auto install it at a kernel driver, its pretty
scary that 2k/xp lets you install kernel filters without user confirmation.

"Fabio" <fpinheiro (AT) bol (DOT) com.br> wrote