Dear Dan Mondrik,
thank you for your reply.
This is some words from NI VISA 3.0 Readme.txt
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IVI driver developers can use the new VISA COM API. NI-VISA 3.0 does not yet
document this API, so only those developers familiar with the specification
should use it in this release.
The VISA COM API is functionally equivalent to the VISA C API. It does not add features; it is just another language interface. The VISA COM API can only
be installed if you have Internet Explorer 4.01 or higher on your system.
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To tell the truth Measurement Studio price is one of the major reason why I am trying to use VISA COM.
Another reason
VXI p&p Syst
ems Alliance offers
VPP-4.3.4: VISA Implementation Specification for COM.
That means that my programs will be possible to use with different vendor VISA COM installation. As far as I understand VPP-4.3.4 Specification was approved by NI, am I right?