Rebuilder 0.01 released

Yes...something new, something fast, something I've enjoyed coding. Rebuilder is a small commandline tool which has some advantages over the rebuilder in clrmamepro. Faster, Standalone merge mode, CHD rebuild to name a few.


Clrmamepro 4.045 released

I've overseen a little sideeffect on full merged sets in grab the new one.


Clrmamepro 4.044d released

while working on something completely different, I found 2 minor things to fix....


Clrmamepro 4.044c released

little fix for scanner's fix-missing which might silently replace a file


Clrmamepro 4.044b released

mainly a little xml parser fix

You want to donate...

clrmamepro is totally free and you don't have to donate anything. Since a lot people asked me how they can donate something, I added a PayPal account and an Amazon Wishlist.

Amazon Wishlist. Check out wishlist and search for "Roman Scherzer". There are multiple search results. Select the one representing: Roman Scherzer, Bonn, Germany / Deutschland, ClrMame / ClrMamePro

Apple iTunes gifts/coupon codes are always welcome, too :)

Thanks a lot for all kind of donations. Your support is highly appreciated.



Here you can download the latest version of Rebuilder.

rebuilder 64bit 0.01 (zip) (706kb)

Here you can download the latest version of clrmamepro.

clrmamepro 32bit 4.045 (zip) (5474kb)
clrmamepro 32bit 4.045 (exe) (3864kb)
clrmamepro 64bit 4.045 (zip) (6096kb)
clrmamepro 64bit 4.045 (exe) (4606kb)

Change Log


  • misc: updated to ZipArchive 4.6.8, unrar, 7Zip SDK/DLL 21.07
  • fixed: rarely list a set as missing when it does not contain any files on its own
  • fixed: 4.044d misplaced a romset regression (full merged sets only)

Vista/Windows7/8/10 user note:

If you install cmpro to a protected folder like C:\program files\, you have to set the compatibility properties of cmpro.exe to 'run this program as administrator' to work correctly or you have to disable UAC. In other folders it should work fine without setting this property and without the need of disabling UAC.

Linux WINE/Mac Crossover user note:

If you got problems with the main window, set the option 'Adv_HideWindow = off' in cmpro.ini. In case you don't have a cmpro.ini yet, create one with the following two lines:
Adv_HideWindow = off

Windows 9x/XP Users:

Update your OS!, no really, update your OS


How to use this piece of software...

clrmamepro 4.x documentation is currently under complete rewrite....

clrmamepro 3.x documentation can be found here

In the meantime tutorials might help you:


Good old ZipMax

Here you can download the latest version of ZipMax. It's not being developed anymore.

Read the how2compile.txt & copyright.txt before compiling zipmax. Both files are available in the archive.

You may need 7zip's zip program to use it. Here you can also download Ben Jos Walbeehm's Tools:


History can be found here.