In VB 6.0, How to append text to file across network using seperate credentials

Posted on 2008-10-20
Last Modified: 2013-11-25
I have a large text file across a network that I need my program to append text to. However, I need it to use a specific set of credentials (user/pass) other than those of the user that has run the program.
Question by:zambuka42
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Expert Comment

ID: 22757359
There might be a nicer and/or easier solution, but I would just map a network drive with your supplied credentials to the remote share, work on the file and remove the share.
The WScript.Network object will do the trick here.
Dim oWshNetwork As Object
Set oWshNetwork = CreateObject("WScript.Network")
oWshNetwork.MapNetworkDrive <DriveLetter>, <\\server\share>, False, <DOMAIN\User>, <Password>
'your code here
oWshNetwork.RemoveNetworkDrive <DriveLetter>, True, False
Set oWshNetwork = Nothing

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Author Comment

ID: 22757921
no, I'm afraid that will not work. It is still the user who ran the program's credentials being used.

Accepted Solution

thewild earned 250 total points
ID: 22758125
So that's NTFS credentials, not network share authorizations, right ?
Then maybe you'll have to use impersonation.
This might help :
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Author Comment

ID: 22759729
not sure what you mean by NTFS credentials. Did you mean NTLM credentials? Anyway, you need NTLM credentials to access a share.. however, my program needs to access the share then write to a file. If you simply make a connection to the share using alternate credentials, that is not enough, because the next step is writing to the file which would then occur using the current logged in user, not the alternate credentials. I need to write to the file using the alternate credentials.

Expert Comment

ID: 22765354
Well, isn't it what impersonation is about ? Impersonate another user to use his credentials ?
Have you checked the link I posted ?

Author Comment

ID: 22765489
I do plan on trying it, i was just trying to clear up what I thought might be a misunderstanding. Anyway, I'm afraid I can't get remotely connected to the site I am using this on at the moment, so I won't be able to try it properly until then. I'll repost.. thanks alot for your help

Author Closing Comment

ID: 31507792
The code in the link provided worked very well. Thank you very much

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