you can get stuffplug to be recieve those files
For Stuffplug
http://shoutbox.menthix.net/showthread.php?tid=42725
The new msn messenger 7.0.0777 has a new feature of blocking certain files to stop instant messenger viruses from spreading. These include:
ade .adp .app .asp .bas .bat .cer .chm .cmd .com .cpl
.crt .csh .exe .fxp .hlp .hta .inf .ins .isp .its .js .jse .ksh .lnk
.mad .maf .mag .mam .maq .mar .mas .mat .mau .mav
.maw .mda .mdb .mde .mdt .mdw .mdz .msc .msi .msp .mst
.ops .pcd .pif .prf .prg .pst .reg .scf .scr .sct .shb .shs .tmp
.url .vb .vbe .vbs .vsd .vsmacros .vss .vst .vsw .ws .wsc .wsf .wsh
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