what exactly are all the things you require to run it?

PHP 4 or 5 (I don't know)
spasm compiled for the server OS and architecture
permission to run spasm and php doesn't disable functions related to proc_open()

Ouch that sucks, that means 1and1 would be no luck either. The best bet would be that someone hosts it himself. I wonder if Netham45 could do this... he has over 9000 servers at home

That is why I will release the source. If he host himself, permission to run it would be no problem.
I though of hosting myself but my parents don't allow a computer running 24h a day... I even have one old computer that could be used.

Seeing as you had troubles getting your forum to work lately, I doubt it. Plus since it's a free host even if the Galadros script worked on it I would take its support for granted

Well actually, I only had problems with the mail() command (they don't support it ) but it's got a lot of stuff that's open...you might want to take a look just in caseit works Galandros

Ok, I will look at freehostia after testing a bit more in my computer.

I wasn't able to host the Z80 Online Assembler myself, sorry.

I forgot a bit about this but yesterday and today I quickly added the pieces to have a beta of the Z80 Online Assembler. It is tested under Windows and works. Under Linux it has some testing (and predictable bugs corrected) but not totally tested...
It supports up to 15 file of source including .inc, .bmp and .bin files because SPASM is great. It has a limit on size, though. (around 20kb IIRC)

Download the source, read the readme and good luck. If you get it working in the Internet, shout me about it!
http://galandrosdev.2kool4u.net/files/CalcUtils.zip

If someone successfully host it, I will finish most things of the ToDo list in the readme.

Kerm Martian is going to try.

I think I can easily add tarball support instead of zip (.tar files that are just a bunch of files together without compression) on Linux Servers. 7-zip can do the tarballs, I hope there are not incompatibilities...
This is super useful for assembling a large project in ASM. Uploading 10 files one by one multiple times is tedious...

Mhmm I found this:

http://faq.1and1.com/scripting_languages_supported/php/9.html

Does this actually means 1and1 has two PHP versions installed at once?

Aaah ok. Well, with 1and1, it seems like the file extensions that requires PHP5 just needs to be renamed to php5 instead of just php.

To integrate to the forums, it might be hard, but I am fairly sure all we could do is embeed the disassembler inside a post or a page, into a iFrame. If the disassembler navigation doesn't reload the entire page but just the iframe, we should be fine.

That should do it... But you don't need frames.
You just need minor changes to the online_asm_file_unsquish.html file and it will redirect control to the hex disassembler.
You can post the online_asm_file_unsquish.html on a article or something, it is just plain HTML.
From memory I think you need to edit where " action="unsquisher.php" " is and change unsquish.php to the unsquish.php5.

If there is still problems, I can do the changes for PHP4. It takes few time to find an alternative implementation and do it. It will hardly be more than 10 lines of code.
But I have switched a bit, for a change, for Excel macros and XUL... I hope to finish what I want of Excel Macros in a few days, though. That is why I didn't do it yesterday or not going to do today.