My application (vb.net) sometimes throws an "access denied" exception when attempting to delete files in the AppData folder and I'm not sure why.
I confirm that the file exists before attempting to delete it and have not done anything to make it readonly, etc.
The interesting thing is that it seems to go okay when I'm logged in with Admin rights. However, I thought that the AppData folder did not require admin rights.
Any help would be greatly appreciated!
Thanks!
My gut instincts without seeing your code is that maybe you have this file opened in your program or in another program?
Maybe these files were created when you launched your application being logged on as Admin? So you get this error when you try to delete them later as normal user.
It is not necessarily the folder, but the Owner of the file you are trying to interact with. If the File is owned by Administrators, you may have problems.
AppData is a protected hidden folder because it is meant for your applications to store Local, LocalLow and Roaming application related data. This is why you would get prompted with a UAC prompt when you try to head into the folder and it is also hidden from view.
Try to use the Privilege demand attribute in your code to request process elevation to access the folder.
Related
My installer fails when it tries to write a shortcut to the desktop when it doesn't have permission to write to the desktop.
(I know the best solution is to simply give the appropriate permissions, and we actually do this, but my boss INSISTS on allowing the installation to continue successfully should the permission to write the shortcut to the desktop be denied and he has instructed our team to test it by intentionally denying that permission.)
So, other than setting the appropriate permissions, is it possible to write a file only if writing permissions for that folder exist? I thought perhaps I could put in a Condition element that checks file permissions. Is that possible?
I'm not very familiar/comfortable with WIX, so I may be overlooking something painfully obvious to a veteran.
I need the app open with admin privileges always in mac, windows e ubuntu. Is there a way to specify this in the XML description file?
I needed this permission to write to the database. I discovered that it is right to point to the temporary directory that is created in the user system folder, instead of pointing to the installation folder.
I am new to Joomla and have been given the task of supporting a site that was created in Joomla 1.5.25. They keep getting errors that files are not writable. They also can't add or delete anything to and from the media manager even in a Super Administrator account. I was able to override these errors with changing folder permissions from 755 (Joomla's recommended permission set) to 777, but was wondering if there is a better way of going about this (I don't want to leave a security hole on their site with the 777 permission set). From what I have read through my research is Joomla permissions requirements can vary based on your hosting company, so I want to get other peoples input before I give my hosting company a call.
On a side note, is there a way of getting the error messages to display longer then 2 seconds?
Why don't you try changing the permissions only to the folders that are written to temporarily? Another solution is to find out under which user apache is running and make sure that user is the owner or at least in a group that owns your Joomla! directory.
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please guide me.
It is correct behavior because you need administrator's rights to access that folder.
The simples solution is to run you program as Administration but I would rather change the folder, otherwise you need to elevate the rights of you app.
Furhter you can look here and here.
Ideally I'd like to be able to copy/move between an accessible folder on my local drive and a network share that I don't have permission to access (but the application would).
I am using impersonation to give me access to the files in the network share but using System.IO File.Move or File.Copy forces me to use the same credentials for each location. Is there a way around this?
What I believe you could do is something like this.
Do the impersonation to allow the selection of files. Copy the files to a location that the app can get to.
Stop the impersonation then have the application copy the file from the temp location to the desired end result.
We have done this before in our applications, it isn't elegant, but it works perfectly!
We've done something similar to what Mitchel Sellers is doing, except that we don't have a location that both identities can read from. We are reading blocks of data into memory using the local context and writing them out while impersonating the remote user.