Block Net.exe and *.xls Files

125 pts.
Tags:
Active Directory
Organizational Unit
OU
Security
Windows Server 2003
AOA Dear all, i am using server 2003. I have made different OU in our domain. Now i want to block net.exe and other program like *.xls,*.doc files. The purpose of these files is that i want to block net send command centerally. please tell me complete procedure how i am block these files extension using active directory. i try using software restriction policy but its n't implement from OU . Please help me. Thanks Muhammad Usman.
ASKED: February 20, 2008  9:26 AM
UPDATED: March 5, 2008  9:49 PM

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Blocking NET SEND is easy. Use your GPO to disable the Alerter service. That will stop the machine from being able to send or receive NET SEND messages.

You can’t block xls and doc files as these aren’t programs. They are files which hold information. XLS files are Excel spread sheets and DOC files are Word documents. You can use a GPO to block Excel and Word from running, however this will probably create a problem as most businesses use Word and Excel often.

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  • Jerry Lees
    MrDenny is right, you could prevent the net command from sending messages (because they wouldn't be recieved) by disabling the alerter service. At first glance it seems like the concept of removing execute permissions from net.exe might be valid--- but that would break the net use command as well, which would likely break login scripts, if they were batch scripts.
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