Reference

Specialist Software

Genuine fractals the best known of the up scaling programs, increased print sizes to giant sizes, claims to go to 1000%, that is a 6mp to the size of a wall, without any loss of quality. 30 day trial version available. This runs in MS .Net framework

Photomatix - HDR soft - dynamic range, either stand alone or plug in, free trial version is available

Virtual photographer - free - 50 effects