Here is a simple hack to make WinZIPfull version to end it’s 40 day trail. Follow these steps :

     1.Download this tool called “Resource Hacker”from here.

     2.Install resource hacker and open it.Go to File > Open > Give path of .exefile (In most cases it’s :C:Program Files (x86)WinRAR).     
     3.Now go to Dialogue and select “Reminder”after expanding Dialogue pane.
     4.Right click on the number inside the “Reminder”and select ” Delete Resource”.
     5.Now save the changes and save the new file with name “WinRAR”at
some other location apart from C:Program Files (x86)WinRAR .
     6.Copy the newly made WinRAR file and paste is at C:Program Files (x86)WinRAR folder.
   7.Now restart the system and your WinRAR will no more give that 40 days left pop up !

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