J'ai trouve...et c'est po gagne :
Running Solaris 7 in a Virtual Machine
It is possible to run Solaris 7 in a virtual machine, even though it is not possible to install it into a virtual machine using the VMware Workstation software on a Windows host. There are two possible workarounds for getting Solaris 7 to run in a virtual machine.
Note: Only advanced users should attempt the following workaround methods.
Method 1 - Windows Host
This method requires that you configure a virtual machine to boot from a raw disk. If your host system has only SCSI drives, or IDE drives without free space, this method will not work for you; try method 2 instead.
Shut down the host system if it is running the Windows host operating system.
Install Solaris 7 Intel Edition directly onto a raw disk partition of the host system. The host system should be set up as a dual-boot (or multiple-boot) system, allowing both Windows and Solaris 7 to boot natively one at a time.
Boot the host system into Windows. If you haven't already done so, install VMware Workstation.
Run the VMware Workstation software and configure a virtual machine to boot from the existing disk partition where Solaris 7 was installed. For details on how to set up a virtual machine to boot from an existing raw disk partition, see Configuring a Dual-Boot Computer for Use with a Virtual Machine.
Method 2 - Windows or Linux Host
This method requires that you use VMware Workstation on a Linux host to install Solaris 7 on a virtual disk. You can then use Workstation on a Windows host to configure a virtual machine to boot from that virtual disk.
On a Linux host computer, run VMware Workstation and configure a virtual machine with a virtual disk.
Install Solaris 7 Intel Edition as a guest operating system using that virtual disk.
You can now run the Solaris 7 virtual machine on the Linux host. To run this virtual machine on a Windows host, you must take several additional steps.
After the guest operating system has been installed, transfer the virtual disk file to a partition where the Windows host operating system can access it.
Boot the physical machine where you plan to run the Windows host operating system. If you haven't already done so, install VMware Workstation on that machine.
Run VMware Workstation on the Windows host and configure a virtual machine to use the virtual disk in which Solaris 7 was installed
Bon ben la je suis bien coince...il est hors de question que je l'install direct sur mon dur...