How to get random folder name in windows folder

[PlutoDev]

How to get a folder name by random in folder c:\windows or c:\program files

because when i run my program, i have to save a file in a folder. but users may not know where this files exists.

so, my solution is save my file in a random folder in drive C that users do not know where my files exists..

after my process done. this file will be deleted automaticly.

for example,
the function may return :
C:\WINDOWS\Fonts or
C:\WINDOWS\system32\CatRoot or
C:\WINDOWS\system or
C:\WINDOWS\Help\mail or
a folder in c:\windows



Thanks in advance.

 

[DjangMan]

When you start your application you can create a TStringList of the possible folders. When you are creating your temporary file you could use a random number of 0 to StringList.Count - 1 to select one of those folders. If you need to add other folders to the list such as c:\windows\system32\catroot then you can add that manually to the TStringList.

 

[roo0047]

The standard way to do that is use the windows TEMP directory, which can be acquired with function GetEnvironmentVariable().

Roo
Delphi Rules!

 

[PlutoDev]

How to get folder name that exists in folder c:\windows\*.*
into TStringList automaticly.

I don't want fill folder name into TStringList manually. because in windows 98, me, xp, 2000, vista, 7 may difference..

I can not use folder temp. i am affraid the user see my file in temp folder.

Thank's for support

 

[whosrdaddy]

forget about putting files in windows system directories.
These include windows folder and subfolders, program files folder and subfolders. It is considered bad practice and it wont work in Vista/W7 due to UAC.

/Daddy

-----------------------------------------------------
What You See Is What You Get
Never underestimate tha powah of tha google!

 

[DjangMan]

What sort of files are you hiding? Music files, databases, pictures? Perhaps there is an alternative way of protecting them.

 

[PlutoDev]

I hide a txt file, this is a result of decryption file by program. after finish my process. this file will be deleted automaticly.

if in folder windows or program files not work.
may be, i will store this file at other folder(random)

or

how to protect this file, so the user cannot see/open/copy this file during my programm process. for example : access denied because is being used or etc...

Thanks

 

[DjangMan]

Is the decryption process part of your program as well?

 

[roo0047]

Already done: Windows OS (all versions) will not allow open/copy/delete while your program holds the file open. You can change file attributes to hidden/read-only when closed.

Roo
Delphi Rules!

 

[PlutoDev]

Yes.

My program step.
1. Load encryption file a
2. file a will be decrypted into file b in random folder
3. My program process something according file b
4. after finis processing. file b will be deleted automatic by program

my problem..
i'am affraid that file b will be copied / read by user,
so i want to copy into random folder.

or how to prevent the user copy or read file b, like denied accesss or etc...

The existing file b is a must and cannot be encrypt !!

Thanks

 

[PlutoDev]

>>> Already done: Windows OS (all versions) will not allow >>> open/copy/delete while your program holds the file open. >>> You can change file attributes to hidden/read-only when >>> closed.

My program step.
1. Load encryption file a
2. file a will be decrypted into file b in random folder
3. My program process something according file b
for example : memo1.lines.loadfromfile(file b)
4. after finis processing. file b will be deleted automatic by program

my problem..
i'am affraid that file b will be copied / read by user,
so i want to copy into random folder.

or how to prevent the user copy or read file b, like denied accesss or etc...

The existing file b is a must and cannot be encrypt !!


Can you give me a sample of the code for this solution.

My Code :
memo1.lines.loadfromfile(file b) -> may be more than 1 minutes when loading file b into memo1, user still can copy file b when the program is running

how to prevent it ?

thanks

 

[DjangMan]

Could you decrypt the file into a TMemoryStream and keep everything in memory.

 

[chandu17]

Provide password to that file. Use password and do decrypt and what ever u want. make sure that open in logically. Unfortunately if user copy this file he cannot to do any thing.