isdone.dll error when instaling app

[somemay]

Hi all,

I can't find here and google with microsoft can't help me.

A lot of APPs using ISDone.dll and i dont know how to install this to my computer.

When i ll open setup.exe and click on install imidiatelly pop up an error message: the module ISDone.dll was loaded but the entry-point Dllregisterserver was not found

I tried that:

Download Isdone.dll from the Internet
Save the Isdone.dll file onto your computer’s hard drive
Browse to c:\Windows\System32
Locate the current Isdone.dll on your system
Rename the current Isdone.dll to IsdoneBACKUP.dll
Copy & paste the new Isdone.dll into C:\Windows\System32
Click Start > Run (Or search ”run” on Vista & Win7)
Type “cmd” in the box that appears
Type “regsvr32 Isdone.dll” on the black screen
Press Enter

And i still have isdone.dll error

I am triing istall this 4days now :'(