PowerPoint Viewer 97 shows graphic failures in PolylineTo and PolyBezierTo functions.

While working on https://jira.reactos.org/browse/CORE-16443 I saw that the graphics were badly drawn. The installer can be downloaded from ppview97.
This is a 16-bit installer. There are instructions in CORE-5738 that tell how to turn this into a 32-bit installer which works in ReactOS (pptview97_setup.txt). This equally affects MS Office 2000 PowerPoint, which can be downloaded from the following:
office-2000-professional Download. The Product Key is available there as well.
From this, you should only install the PowerPoint for best results, since I know that this works fine.
There is a good PowerPoint example available in CORE-16263.
It is named "sample.ppt" and is about 900 KB in size. This is what I used for testing here.
Rapps has a PowerPoint Viewer 2010 available, but it does not have these same problems,
so it cannot be used for testing here. All problems that I found were visible on the first two pages of the "sample.ppt" file.

Here are examples of the graphics:

Here is a patch that provides fixes: pptviewer97-09.patch

And here are the same graphics after the patch is applied:

Debug Log: 16-2614-pptview97-01.txt