How to correct "Access denied" for a file (.txt or .csv) written & saved (in installation folder) by the software while doing calculation & then use it for further calculation in a software written in Visual Basic?

Question

Hi,

After installing my Astrology program ("Astro Prog") written in VB, whenever I open it I get this "Error" message;

System.UnauthorizedAccessException: Access to the path 'C:\Program Files (x86)\Astro Prog\Detected Moon positions.txt' is denied.

To correct it, I have to go to the "Program Files (x86)" --> Astro Prog --> Right Click it --> Properties --> Security --> Edit --> Select "Users" --> Tick "Full Control".

Is there any way to prevent this "Error" occurring?

I want to know how to give "Full Control" to the "Installation Folder" on programming.

Could you please let me know?

Thanks

VKSB

Answer 1

The ProgramData folder may be a better choice for the purpose.

https://learn.microsoft.com/en-us/windows-hardware/customize/desktop/unattend/microsoft-windows-shell-setup-folderlocations-programdata

Answer 2

Don't put user data in your software install folder.

See: https://social.msdn.microsoft.com/Forums/vstudio/en-US/77aaf6e1-8de5-4529-9b26-fa89b55fcc49/best-practices-storing-application-data-and-resources?forum=csharpgeneral

Answer 3

Hi @VKSB ,

If you want to give "Full Control" to the "Installation Folder" on programming, try using DirectorySecurity Class with FileSystemAccessRule Class.

Best Regards.

Jiachen Li

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