Windows 7 64 bit and Avisynth

[broxburn]

Have a new PC running W7 Home Premium
I installed the latest AviSynth and created the simple .avs file (version).
Neither VirtualDub (32 bit) nor MPC open the file - no error messages.
Both have to be terminated by the Task manager as non-responding.
Tried the same version on an XP PC with no problem.
Also installed an earlier version of AviSynth - same symptoms.
Google isn't turning up anything specific about W7 and Avisynth.
anyone any ideas?

[kypec]

There are more branches of Avisynth being available now. Which one did you install precisely? I've no problems whatsoever with my Win 7 x64 and Avisynth 2.5.8 (http://sourceforge.net/projects/avisynth2/files/AviSynth%202.5/AviSynth%202.5.8/) from official repository.
Version 2.6 is still rather in alpha stage and not recommended for serious usage IIRC.

[broxburn]

Avisynth 2.5.8

I then uninstalled avisynth and installed AutoGK and let it install it.

AGK just sits analyzing the source video.

[kypec]

Oops, then I'm out of ideas...are you sure you have Administrator privileges when installing Avisynth on your machine? Check the keys in HKLM registry.

[broxburn]

I loaded the 'version' script using Windows Media Player OK.
Assume it's installed ok, but nothing else that I try will run the script.

[steptoe]

Turn OFF the over protective file UAC file management

Its a pain in the arse and blocks far more than it should do, so its like trying to tighten a nut with a 9 foot monkey wrench

You may find that is causing aggrevation as unless you specifically tell it exactly what file has permission it blocks virtually every piece of software you want to run that hasn't been certified by Microsoft, or needs admin rights which sounds as if thats what is causing the problems

I'm using Win7 64-bit Ultimate with no problems at all, but I do have the UAC turned OFF. I use DVD-RB with AviSynth 2.5.8 and so far have had no major issues

[broxburn]

Tried turning UAC off - rebooting -it makes no difference.

[broxburn]

I removed bassaudio.dll, which stopped VirtualDub and an avs file which stopped MPC, from the plugins folder and aviSynth seems to work ok now.
Much obliged for the suggestions.

[stax76]

Maybe better to turn on UAC again.

[RunningSkittle]

Post your avisynth script! Are you using directshowsource? If so switch to ffmpegsource instead.

[kypec]

Yes, :script: and also make sure to remove all plugins from your autoload plugins folder - you should have tested the basic "Version()" script right after the fresh installation of Avisynth.
Only when this works it is advisable to start putting there other 3rd party plugins.
My autoload plugins folder contains only the very basic libraries (Avisynth 2.5.8 MT installed).
colors_rgb.avsi 7129 8. 7. 2005
FFMS2.avsi 3995 24. 8. 2010
DirectShowSource.dll 130560 30. 6. 2009
ffms2.dll 5962240 25. 8. 2010
MT.dll 111616 30. 6. 2009
TCPDeliver.dll 221184 30. 6. 2009One should really better load all other plugins explicitly in the script via LoadPlugin().

[AlekseiV]

Turn OFF the over protective file UAC file management

[...]Ignore everything in this post and turn UAC back on. It doesn't interfere with Avisynth and it does a lot of good.

[broxburn]

@RunningSkittle
Thank you - I was using the one liner, 'version()'

@kypec
I wish I had known that before I began - much obliged.

@AlekseiV
It's on again.
I turned it on after I saw it had no effect.