Pitney Bowes MapInfo Professional - Manual (Page 59)

The uninstall key is unique to each version of MapInfo Professional. To silently uninstall an older
version of MapInfo Professional, you would need to use its product code (uninstall key). These Note:
keys are in the regestry at
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
59 Install Guide
Appendix B: Silent Installation Procedures