The best replacement for msp is msi.

The best alternatives to msp are rated as following:
★★★★★  msi
★★★★  vms
★★  prince2
★★  primavera
★★  pgmp
★★  p3o
★  reaktor
★  sncp
★  apmp
★  hs yamaha
★  var
★  saas
★  moviestarplanet
  jssi
  pd
  ms3
  pure data
  config xml
  ohip
  rpo
  dtw

Your alternative for msp is not listed? Suggest!
Speaking about msp, one probably shouldn't forget about msiexec.

Other search terms related to msp and their ratings are:
★★★★★ msiexec
★★★ msi
★★ premium assistance
★ an msi
You have in mind a companion for msp and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of msp in all years. Click on graph for more.
msp
msi
vms