vst's not working/causing crashes

[iHutch]

Hi guys, I'm hoping someone can help me out here. I've had ableton for a couple of months now and I thought i'd have a look at some vst's. So I downloaded a few freeware vst's, unzipped them and moved the .dll files to my vst plugins folder. Now when I open Live i get error boxes pop up with messages like, Can't load module. 'Unkargherth fDelay' . I'll get multiple messages like this or Live will sometimes just crash. If it doesn't crash and I finally clear all the error messages when I try and open a vst (for instance that error message was from a vst called Sophia by audiobulb) no sound will be produced even though the track is armed. This has been the case with every vst i've tried.

I'm hoping its something simple as I can be a bit of a computer tard.

So has anyone else experienced anything similar to this or know how to solve the problem?
Many thanks for your help ladies and gentlemen,
Hutch.

P.S I'm using a PC not a mac if that makes any difference and I made sure the vst's I downloaded were windows versions.

[iHutch]

Seem to have sorted it. The .dll files were not recognised by ableton. I went into my vst folder, right clicked one, went to open with, then selected ableton. Now they open and work with no issue at all.