John_Nolan1 · Dec 31, 2010

Roger was great. He knows what he is doing and will go the extra mile to figure things out for you.

for Excel add-on for C DLL (part 3)

John_Nolan1 · Nov 18, 2010

Continuing great job, very fast response

for Excel interface to a C DLL (part 2)

John_Nolan1 · Nov 10, 2010

extrnh has experience working directly on the project (developing an interface to a C DLL from Excel). He did this very quickly. Highly recommended!

for Excel interface to a DLL

Brandon_Webb2 · Oct 24, 2008

Roger not only completed my request extremely fast, but also went beyond expectations. He can visualize anything asked with no concerns. I could not be more pleased with the results. Thanks Roger, I will be using you more!

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