Unins000.dat May 2026

: Every program installed with Inno Setup will have its own version of this file located in its installation folder.

: While the .exe file is the program that runs, the .dat file provides the data describing exactly what was installed and where. unins000.dat

is a critical data file used by the Inno Setup installer to manage the removal of a program from a Windows system. It contains the specific instructions, file paths, and registry keys that the corresponding unins000.exe execution file needs to completely clean up an application. Key Functions and Characteristics : Every program installed with Inno Setup will

: Often caused by accidental deletion, incomplete installations, or aggressive "junk file" cleaners. or aggressive "junk file" cleaners.