VDub not opening avs files

[jedi_rian]

I feel like a certified idiot for posting here yet again, but I don't know what to do about this one. I'm trying to load my avs script into VirtualDub and I get this error:

VirtualDub Error

Avisynth open failure:
Avisynth: Script open failed!

I wish it would say WHY it failed...
I tried uninstalling/reinstalling both VDub and avisynth, but nothing seems to work.

[Kariudo]

look through avisynth's plugins folder, remove all duplicates
also look for multiple versions of masktools.dll
you can't have two 1.x.x versions in the folder at the same time, but you can have a 1.x.x and a 2.x.x (aka mt_masktools.dll)

if that doesn't solve your problem, move all the plugins out of the plugins folder. Try opening a simple directshowsource() or avisource() script
now take the plugins that you moved out of the plugins folder and start moving them back into the plugins folder one by one (opening the script after you move a plugin back into the folder)
when it doesn't work, you have your culprit...then just delete that one or leave it out

if it doesn't work after you removed all the plugins...then we'll have to try random ideas and questions

[jedi_rian]

Thank you SO much for the advice. By trial and error, I found that the offending file was setmemorymax.avsi. When I left it out, my avisource file worked fine!
My MPEG2Source files still aren't working, although the error for them has now changed-- it says

VirtualDub Error

Avisynth open failure:
MPEG2Source: Could not open one of the input files.
(G:\AMV\haibane renmei\DGIndex files\Disc 2\Disc 2.avs, line 1)

I get the feeling there's something completely different that I'm just doing wrong, but I don't know what it is.

[jedi_rian]

Never mind... I figured it out and all is well! Since I moved the files from my hard drive on one computer to another, my drive changed from E:\ to G:\, and that had to be changed in the script of the avs and d2v files. Now everything works splendidly!

Thank you SO much for all of your help!