"Can’t not create activeX component"

Hi everyone,

I have a problem as below:

I used Microsoft Visual Basic 2010 to make Macro and I used the following to get the end-force:

objOpenSTAAD2 = CreateObject("OpenSTAAD.Output.1")

When programming I put the reference to file: “Interop.OPENSTAADLib.dll”

The Macro run well for some computers but for some computers specially for Windows 7 there is a massage that:

“Can’t not create activeX component”

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Please support us to solve this problem.

Regards,

Thai