Password protected Files while Extracting

[Cesar82]

Originally Posted by Cuttlas

it seems K-Lite Codec Pack Mega have done it using inno setup without .arc

The installer uses Inno Setup's own encryption using the ISCrypt.dll library (Just add it to the Inno Setup folder and define "Encryption=yes" in the [Setup] section of the script
"Password=123").
I don't know if it is possible to unpack an installer that uses this encryption library, however the K-kite Codec Pack installer does not ask the user to enter the password.
The Password is internally in the executable code and is inserted into WizardForm.PasswordEdit when calling the "CurPageChanged" function.

I tested the installer executable "K-Lite_Codec_Pack_1820_Mega.exe" here and discovered that its password is:

fJYYzCYYSj2VWssUVrWW5oskvCs1Yzzf2zzSWWWVs5IvzYI2IWnsnzzI0nC052vd

I tested other older versions such as 17.25 Mega, 17.66 Mega and the same password works.