Someone uses one of my programs said that each time he run it, a file created in temp folder with random name like "~DF383B89D0B766850A.TMP", that program don't access temp folder at all!
To test I have created an app with no code at all (just empty Form), i noticed that temp file is created too!!!
Run any VB6 compiled exe even a blank form doing nothing, a temp file will be created. Close it and the temp file is gone. I don't think can do any thing about this.
Run any VB6 compiled exe even a blank form doing nothing, a temp file will be created. Close it and the temp file is gone. I don't think can do any thing about this.
That does't sound right. There is no reason to create a temp file, especially when the app does nothing. Granted it's been a while since I've worked with VB6, but I've done a lot of work in the past with it, and never once did the programs I wrote in it produce a temp file of any kind.
Run any VB6 compiled exe even a blank form doing nothing, a temp file will be created. Close it and the temp file is gone. I don't think can do any thing about this.
it is not true, absolutely.
A file (any) is created ONLY when writing code that creates it.
Someone uses one of my programs said that each time he run it, a file created in temp folder with random name like "~DF383B89D0B766850A.TMP", that program don't access temp folder at all!
To test I have created an app with no code at all (just empty Form), i noticed that temp file is created too!!!
What is that file? Can i prevent creating it?
The tmp file is in this naming format:- ~DF383B89D0B766850A.TMP
This is the format created by Windows, not by any intentional call by programs to create a temp file (and letting Windows name it) in the temp folder.
Yeah, I've got to jump into this one too. I've been using VB6 almost daily for a very long time, and I've never seen it create any kind of mysterious "tmp" files that I didn't explicitly create, or at least know why they were created.
There are only three possible scenarios I could think of where this could even be remotely considered:
1. If we really want to get highly technical, I suppose we could say that parts of a VB6 program could get shoved into the Windows pagefile. But it wouldn't do anything that looks like what was outlined above.
2. When in the IDE, we will get a .VBW temp file when we exit a saved .VBP project. This is just a record of the forms and/or modules that were opened when we were last developing this project. And again, this doesn't look anything like what was outlined above.
3. When using some strange DLL (including OCXs) to which I don't have the source code. None of the core Windows DLLs, nor any of the standard OCX files that come with VB6 create any "tmp" files that I'm aware of (but there possibly are scenarios where you could push them into doing this). However, if you're using a DLL (or OCX) from other sources, it's entirely reasonable that they could creating temp files. In fact, without the source code (or dis-assembly), there's really no way of knowing what they're doing.
Again, straight-up VB6 isn't going to create any temp files that you haven't explicitly created.
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Elroy
Any software I post in these forums written by me is provided "AS IS" without warranty of any kind, expressed or implied, and permission is hereby granted, free of charge and without restriction, to any person obtaining a copy. To all, peace and happiness.
I should add that many of the IDE designers in VB6 do create temporary files. Quite a few over time.
Most of these go into the current profile's temporary folder, sometimes they go into the Project folder (current directory of the IDE actually). It depends on the designer.
I have never seen any go into the old "DOS Temp" folder in the root of the system drive.
Windows create a tmp file of that format name for the VB6 IDE without any add-in started at start-up. The attached video shows. This is not a virus or malware.
The DebugLogFile is used by Windows. The 3 existing tmp files are created by the screen-capture software.
Who said anything about add-ins? Designers range from the basic Form designer to the DataReport designer and beyond.
Are you now talking about a design-time issue? You said users were seeing these temp files earlier. If so I'd guess your compiled program has an infection.
This kind of temp file is created when loading a Form has user's Icon, to confirm
1- Create new project
2- Add Form2 and set its Icon property
3- Add Command1 to Form1
Code:
Private Sub Command1_Click()
Form2.Show
End Sub
4- Make Project1.exe
5- Watch your temp folder
6- Run Project1.exe
7- Each time you Show/Hide Form2 a tmp file is created/deleted accordingly.
This kind of temp file is created when loading a Form has user's Icon, to confirm
1- Create new project
2- Add Form2 and set its Icon property
3- Add Command1 to Form1
Code:
Private Sub Command1_Click()
Form2.Show
End Sub
4- Make Project1.exe
5- Watch your temp folder
6- Run Project1.exe
7- Each time you Show/Hide Form2 a tmp file is created/deleted accordingly.
This kind of temp file is created when loading a Form has user's Icon, to confirm
1- Create new project
2- Add Form2 and set its Icon property
3- Add Command1 to Form1
Code:
Private Sub Command1_Click()
Form2.Show
End Sub
4- Make Project1.exe
5- Watch your temp folder
6- Run Project1.exe
7- Each time you Show/Hide Form2 a tmp file is created/deleted accordingly.
You nail it. A blank form with no code or control but with the icon set in the IDE, when compiled and run, the tmp file is also created by Windows, and then deleted when the exe is closed. This is not a virus, malware or infection!
I knew this tmp file thing happening but just did not know the reason why and how Windows create and delete them. Now I know. Thank you.
You nail it. A blank form with no code or control but with the icon set in the IDE, when compiled and run, the tmp file is also created by Windows, and then deleted when the exe is closed.
It is created by MSVBVM60.DLL or maybe other VB runtimes file and deleted after closing all forms with custom icon, that's why i used two forms to explain that tmp file is created only when loading a Form with custom icon!
[RESOLVED] VB6 app mysterious temp file
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Originally Posted by Absolute_Zero
