Re: MPEG files in directory cause Explorer.exe to use 50% or 100%

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

Thanks Leonard. Yours are probably well formed AVIs with valid indexes etc.

Today I found an old posting on
http://www.moviecodec.com/topics/3588p13.html which quoted
www.tweakxp.com/tweak2123.aspx, saying

“Windows XP Explorer has a 'feature' to provide a preview in the Details
box on the left of the file you have selected, if it’s supported. Image
files, HTML pages, video clips, MP3s, etc are all previewed (even with the
folder view open).
If you have a large movie clip and it either is corrupt (ie. no index from a
partial download) or it uses an unsupported codec, then Explorer tries to
load the whole file. This can slow your computer a lot and prevent
deleting/renaming/moving/etc the file until it’s finished." It then goes on
to suggest unregistering shimgvw.dll and shmedia.dll which seemed a little
drastic. I don't know what they do and what side-effects it could cause.

I took a suggestion from further down the thread and changed the "View -
Thumbnail" option in Explorer to "View - Icons" for that directory. This
stopped the problem happening, so I'm **very** happy. I don't have problems
playing other MPEGS, so it isn't likely to be a codec problem. It seems my
MPEGs don't have indexes or might be corrupt, so I'll contact the software
company that wrote the program I used to create the MPEG files.

That gives **me** and anyone else who finds this thread a work-around, but
still doesn't explain why Explorer behaves this way and could cause problems
for many other users who may not have the days needed to scour the Internet
for a work-around. Note, I'm not saying all users, because I can replicate
the problem on my desktop and laptop (both XP Pro SP3, but not on my kids
machine which is XP Home SP3 - which may or may not be a coincidence).

How can a bug report be submitted to Microsoft?

Regards

James
.

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