Outlook: How to open blocked attachments in Outlook like VBS, MSI etc..

for obvious security risks, Outlook by default block certains risky file extensions.
the lists of block file types are:

.ade;.adp;.asx;.bas;.bat;.chm;.cmd;.com;.cpl;.crt;.exe;.hlp;.hta;.inf;.ins;.isp;.js;.jse;.lnk;.mda;.mdb;.mde;.mdz;.msc;.msi;.msp;.mst;.pcd;.pif;.prf;.reg;.scf;.scr;.sct;.shb;.shs;.url;.vb;.vbe;.vbs;.wsc;.wsf;.wsh

you can unblock it by using the following tweaks:
Office 2003: Out2k3 Dis_AttachBlock
Office 2007: Out2k7 Dis_AttachBlock

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