HI but please, respect for cats

I wonder if is there a program like avfs (avisynth virtual file system) that can generate an AVI uncompressed fake-file (virtual file) that, a difference of avfs, can take a pure interlaced output. So that the NLE can correctly recognize that content is really interlaced.

AVFS take only a progressive output, even if content is interlaced. But also I would like a .avi file that is flagged as interlaced. If possible, thanks