Create a install.reg file.
code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSNMessenger]
"InstallationDirectory"="C:\\Program Files\\msnmsgr\\"
Change the path to the located directory (such as "C:\MSN"), make sure every \ gets replaced by
double \\ -- If it's C:\MSN change it to, C:\\MSN