Help : Os service Pack error when patching ???

[sergecalderara]

Dear all,

I have an original package wich has been build and installed successfully on customers system with windows 2000 SP2.
That installation package got the Installation condition :

ServicePackLevel <=2
Message :"YOU need at least WIndows 2000 Sp2"

, meaning that the most OS level should be 2

Then I build a setup package for my patching, with the condition:

ServicePackLevel <=4

After this I run the Tool -> Generate patch... with default settings

Patch creation is generated without error.

Then the target system got Windows 2000 SP4 installed
Then when applying this patch to the target system, I got the error message set in my ServicePackLevel string set in orgininal package...

Does anyone knows why I get that error message ?
Does a pacth can be applied only on the same OS and service pack level as original package? If yes how to apply a patch on a more recent Service pack?

Thanks for your help

Regards
Serge