which is the best debugger for my fasm win32 projects?

http://www.ollydbg.de/ -> seems to work well for me

There might be something better out there and I'm sure other forum members will chime in. I'm a newbie to FASM so the other forum members will probably have better advice.

ollydbg and softice are probly the most popular debuggers. olly is free, while softice is not and i believe it is no longer available for sale. microsoft also has their own product, windbg, which i find too awkward to use

http://www.ollydbg.de/
http://www.microsoft.com/whdc/devtools/debugging/installx86.mspx

Numega SoftIce 4.2.7 NT/2000/XP RC1 can be downloaded from http://reversing.kulichki.net/files/debug/sinstallnt.exe. It was ripped from Driver Studio

well, i'd recommend softice .. but .. its hard to get it working properly since its ring0. i would recommend that you use driverstudio 3.2 (plus the v3.2.1 patch released by Compuware)
oh and , good luck with it

zhak, dont post 'warez' here please

coconut, sorry. I won't...

From my experience Olly is the safest and easiest to use.

If you're going to use softice, do yourself a favour and install it on a separate machine (or dual-boot config) running win2k SP4, and PS/2 keyboard/mouse.

Getting softice working on XP, especially if you have things like dualcore, lots of ram, and USB mouse (or even worse, keyboard!) can be really hellish - and even when it seems to work perfectly, you risk getting a sudden reboot after some hours of work.

It's a real shame softice was discontinued, as it was a really powerful debugging tool, and a lot more intuitive than WinDBG.

WinDBG is also pretty powerful, though - but you need two machines to do kernel-mode debugging (and the control is horribly slow unless you use a firewire connection between the two). You can also do vmware with serial emulation via named pipes, but that's also pretty slow.

And then there's the issue of WinDBG having an extremely clunky interface

anyone has an idea for a good Linux debugger like OllyDbg? I think I will start a new thread for that

what about GDB ?

as for the problem with serial stuff...
http://sourceforge.net/projects/com0com
allows for virtual serial ports under windows which you can then use in bochs or vpc or whatever...(it's a bit hard to setup though)

SoftICE was the best debugger for Windows ring 0 code. OllyDBG and IDAPRo build in debuggers are very powerful but can debug only ring 3 applications, while IDA is capable of disassembling device drivers and can be run remotely on Windows and Linux systems. IDAPRo is commercial product and it's worths its price however I prefer debugging with OllyDBG. Visual Studio also has not a bad (but certainly not the best) debugger.

Depends on what you're doing, though - if you're debugging something you have the source for, and especially one of the supported HLLs, the VS debugger is very very nifty, because of things like watch expressions, type knowledge, etc...