The installer does not run because I haven't got an Internet connection at that machine Windows edition requires some libraries to be present, normally these are downloaded from the Internet when needed.
There are some prerequisites which need to be installed first to be able to run the installer.
Microsoft .NET Framework 2.0 (x86 or x64)
Microsoft XML Parser 4.0 Service Pack 2
Microsoft Visual C++ Package MFC (SP1) Security Update
Microsoft WSE 3.0
The only difference for version 7.2 is the Microsoft Visual C++ Package ATL Security Update version: