ActiveX Ms Chart Control Not Rendered Under IE 7

We're using Visual C++ 6.0 to develop a web-application, which uses ActiveX controls. One of them is this Microsoft Chart Control(6.0), to show some statistics or something.

Well, it works and shows up fine when the .ocx is run under a PC that has Internet Explorer 6.0.

But under an IE 7 machine, that chart isn't displayed; there is a blank image instead. It doesn't show up. No errors or exceptions thrown.

When I run the application from Ec开发者_JAVA技巧lipse in hosted mode though, it works fine again. Only when opened in IE 7, that chart disappears.

This MS Chart Control apparently uses MSCHART20.ocx

Thanks in advance for any advice towards a fix, or a workaround, or a needed upgrade.

I don't like upgrades though. But I need to figure out what kind of upgrade can be done to make this work.