In the recent past, there have been several initiatives by major software c
ompanies, such as Microsoft, to lead the industry towards electronic softwa
re distribution, in this paper, we use a monopoly pricing model to examine
the optimal pricing strategies for 'selling' and 'pay-per-use' licensing of
packaged software over the Internet. Traditionally, software distribution
included outright sale as well as short/long term renting. With the Interne
t fast becoming a prevalent mode for disseminating software, a customer can
download and use software on a need-by-need basis. For the software vendor
, offering the pay-per-use option to the consumer provides for a steady sou
rce of revenue and obviates the need for physical distribution, purchasing
and inventory management mishaps. We examine the following issues in this p
aper: (i) what are the extra benefits to the software vendor for providing
the pay-per-use option?; and (ii) does the market size change? The contribu
tion of this paper is to show that pay-per-use is a viable alternative for
a large number of customers, and that judicious pricing for pay-per-use is
profitable for the software vendor.