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We started having attachments being stripped with Forefront saying that the reason for the removing of the attachment is an EngineError. &nbsp;Looking at the event viewer I found that VirusBuster had failed installing its latest update. &nbsp;I looked online and found that to sometimes resolve the issue is to remove the offending engine folder and then update again. &nbsp;I try to delete the VirusBuster folder, but it says that I do not have permissions even though I am logged on with the Administrator account. &nbsp;This is on SBS 2008 machine. &nbsp;What am I doing wrong? &nbsp;Thanks for any help.
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We started having attachments being stripped with Forefront saying that the reason for the removing of the attachment is an EngineError.  Looking at the event viewer I found that VirusBuster had failed installing its latest update.  I looked online and found that to sometimes resolve the issue is to remove the offending engine folder and then update again.  I try to delete the VirusBuster folder, but it says that I do not have permissions even though I am logged on with the Administrator account.  This is on SBS 2008 machine.  What am I doing wrong?  Thanks for any help.

Forefront Virus Buster Engine Update Error

Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.

Microsoft Forefront ISA Server

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.