Bence,
It's a bit unusual to share just part of the installation, but you can use a directory symbolic link to point to a network shared area. Search for the windows "mklink" command for more information. Search for "directory junction vs directory symbolic link" as well.
My guess would be you can accomplish what you need via:
1. Copy the "Common Files" folder to a network share area, and configure as needed.
2. On each client PC, rename (or delete) the "Common Files" folder. (I'm assuming the installs already exist.)
3. Use the MKLINK command to create the directory symbolic link on each client.
For example:
1. Copy "Common Files" to "\\servername\sharename\Common Files"
2. Delete or rename the "C:\Program Files\PTC\Creo 7.0.1.0\Common Files" folder
3. From a DOS/CMD window on the client PC, run MKLINK /D "C:\Program Files\PTC\Creo 7.0.1.0\Common Files" "\\servername\sharename\Common Files"
This should work, but it's a bit odd in my opinion. There are other ways to accomplish having a common/shared configuration. [Ben mentioned the network install method already.] Each method has it's advantages and disadvantages. I'd suggest you examine your users & business needs before deciding on a particular method. There are lots of things to consider; network speed, laptops and remote use, disconnected use (borrowed license, laptop, no network), global WAN use, amount of data to share/copy/synchronize, deployment method, how many configurations you need (training, project specific, product line specific, language specific), etc. Regards,
Dan N.