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How do I configure attachment blocking in Outlook Web Access on Exchange Server 2003
There are several new features included within Exchange Server 2007, which some of my articles touch on briefly. However, if you are looking for training that takes you from installation to integration with Outlook and management of Exchange Server 2007 then you need Train Signal's training videos. The Exchange Server 2007 training videos are taught by Microsoft MVP and MCSE, David Shackelford, who teaches with a "Hands-on" approach.
Daniel Petri
MS KB 555001 by William Lefkovics (MS Exchange MVP) has more info:
There are 2 levels of file attachments for Outlook Web Access. Level1 attachments have file extensions that are prohibited from accessing by OWA. Level2 attachments have file extensions that can be accessed, but only if saved to the client's file system first.
OWA is installed with a default set of file extensions for the two levels as shown in the following registry keys:
Level 1 attachments
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeWeb\OWAValue: Level1FileTypes
Type: REG_SZ
Value Data:
ade,adp,app,asx,bas,bat,chm,cmd,com,cpl,crt,csh,exe,fxp,hlp,hta,inf,ins,isp,js,jse,ksh,lnk,mda,mdb,mde,mdt,mdw,mdz,msc,msi,msp,mst,ops,pcd,pif,prf,prg,reg,scf,scr,sct,shb,shs,url,vb,vbe,vbs,wsc,wsf,wsh
Level 2 attachments
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeWeb\OWAValue: Level2FileTypes
Type: REG_SZ
Value Data:
ade,adp,asx,bas,bat,chm,cmd,com,cpl,crt,exe,hlp,hta,htm,html,htc,inf,ins,isp,js,jse,lnk,mda,mdb,mde,mdz,mht,mhtml,msc,msi,msp,mst,pcd,pif,prf,reg,scf,scr,sct,shb,shs,shtm,shtml,stm,url,vb,vbe,vbs,wsc,wsf,wsh,xml,dir,dcr,plg,spl,swf
Attachments listed should be separated by a comma with no space.
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You may find these related articles of interest to you:
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