Upper limit on Wordpad documents?

It does :slight_smile:

Yes, I could have done it at the command prompt, but I didn’t.

Yes, see here, but that’s an OS limitation, not an application limitation, isn’t it? To misquote Bill Gates, 8TB (44 bits) should be enough for the next few years anyway.

Well, yeah, it’s an OS limitation. And it’s one that an app can work around by doing its own paging (like Oracle being able to handle 16 TB databases on 32-bit Windows and Linux, or Visicalc being able to handle 1MB spreadsheets on 8-bit Apple II DOS). But I’m willing to bet Wordpad doesn’t do that.

On top of that, I believe RICHEDIT has a smaller limit, and an even smaller limit to what it can load up at one time. You can get around that by manually feeding it with a stream callback instead of just dumping in a whole file (which would also get rid of the lag you saw when your file got big), but I doubt Wordpad doesn’t that either.