http://isatools.org/msblast.zip It contains two scripts: - block_msblast.vbs - this script creates the Blaster-specific policies as recommended by http://microsoft.com/isaserver/techinfo/prevent/BlasterWorm.asp - fix_msblast.vbs; this script seeks out and removes the A-C variants of Blaster. It is not intended to replace a good Anti-virus mechanism. ..I'm trying to keep pace with the jackasses out there, but I'm outnumbered... Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://www.microsoft.com/isaserver http://isaserver.org/Jim_Harrison http://isatools.org Read the help, books and articles!