how do i open acsm file on my windows pc? i downloaded adobe digital edition, but it says error, check valuation?

I'm wondering if that is similar to the issue I've encountered before, where the file association for acsm is not to ADE but a certificate file. If you could try right clicking on the acsm and 'open with' and search for ADE and make sure 'always open with this' is check marked, that may, I repeat may, help.

If you've already done this, I don't know what to say, that's just what I've seen.