They deal in software products.

As I don't have the software that matches the attachment, I cannot open the file. Please resend it in another format.

Apparently my anti-virus software is not up to snuff.

You have our permission to include our software on condition that you send us a copy of the final product.

Please advise us, if possible, of a company which has developed image processing software.

This software carries out Markov Chain Monte Carlo calculations by the use of Gibbs Sampling.