Hey! I used Print Shop 1 (it was freeware, 1989(?)) and subsequent versions until it became too bloated I'm pretty sure it is still installed on my 386.
I switched to irfanview in latter 1990's because it is free and has command-line features for script processing -- dcraw for raw development, irfanview for saturation, resize, sharpen, format conversion, my quick method using scripts. For critical work I use Canon DPP for most PP, Curves in PSE... Anxiously awaiting for 16-bit support in GIMP!
Canon 5Dc, Spotmatics II, F, ESII, Pentax 6x7
S-M-C Takumars 17-500mm (18 lenses), S-M-C Macro-Takumars 50 & 100mm, S-M-C Bellows Takumar, Macro-Takumar 50/4 1:1, S-M-C Takumars/6x7 55-200mm (7 lenses)