Steps to Reproduce:
1) Have the installaion place the log in %Appfolder%
2) Create an installation with a default %Appfolder% of C:\myprogram
3) When you reach the "Install Myprogram to:" screen, change C: drive to D: drive
4) Complete the installation
The program will install to D:\myprogram. However, the installation will also create C:\myprogram (the default %Appfolder%) and place the log in that folder.

