[RF-Fab]

If the game often crashes (mostly during saving procedure) and you're running a 32bit OS the crash might be caused by the fact, that 32bit operating systems only provide an address space of 2GB to every userprocess (no matter if it's a game or a notepad).
If Renaissance needs more than these 2GB of virtual address space the game crashes. Because saving the game needs a bit more memory for a short time period the game mostly crashes there.
In order to configure your operating system to give more address space to userprocesses you can do the following:

Windows XP:

Start=>Run=>Enter sysdm.cpl and press ENTER
In the new form click
Advanced=>Startup and Recovery Settings=>Edit

Now you're editing the boot.ini. Be careful and do exactly(!) what is written here.
Search for the entry of your operating system and add "/3GB /USERVA=2990" at the end of the line. The whole thing should now look similar to:

[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect /3GB /USERVA=2800

Now all you have to do is rebooting your system.

Windows Vista:

Click on Start->All Programs->Accessories
Now right click on Command Prompt and select "Run as administrator"

Now the command prompt should open where you type the following command:

bcdedit /set IncreaseUserVA 2800

Now press enter and reboot your system.

Windows 7:

Click on Start->All Programs->Accessories
Now right click on Command Prompt and select "Run as administrator"

Now the command prompt should open where you type the following command:

bcdedit /set increaseuserva 2800

Now press enter and reboot your system.

This guide does not only apply if your system has more than 2GB of memory. The RAM is only the physical memory while the memory the OS provides is virtual memory that also uses your page file.