avast saying Multisim 11's xspice.dll is a virus

Since Avast Free’s last update it has been deleting xspice.dll from my National Semiconductor Multisim 11 electrical simulation software. It is doing this on all 4 of my computers plus my classmates computers.

I have checked the file with other av software and it is not infected. Avast keeps triggering on it though even when I add it to the exclusion list.

This is annoying to say the least as I’m in the middle of a very accelerated summer quarter and cannot use the primary software needed for doing my labs with out disabling Avast and unprotected.

I have submitted several false positive forms but have not received any response.

Does anyone have any info on this “virus” alert?

welcome to the forum. please upload the file to virustotal.com and post the result here so we can have a look on the file. if you have send it to avast then they should be fixing it in a few days if there is a false threat.