tell us more about what software you want to run, and what hardware you have. What model iMac: bulbous? lamplike? or flat? How much RAM memory?
And what version of Windows were you intending to run under "Q"?
Some software might run OK, but since I have no specifics about what you want to run, my answer is that most Windows software will run
extremely slowly via Q on a PPC mac.
It works fairly well although it is still beta software. I suggest you go to the
QEMU web site for answers to your questions. Do some Google searches as well.
The Apple Discussions do not provide third-party product support.
I have an iMac G5, flat screen, with 512 MB of ram memory. I was told the software I want to run is based on the Microsoft .net framework 2.0. And I haven’t figured out which version of windows I am intending to run.
If the software is "business software" that doesn't require fast user interaction -- and doesn't require much input and output and screen updating -- then Q might suffice.
The more modest the version of Windows, the happier Q will be. So Win98 would be more responsive than WinXP. You might check the OS requirements for your program.
I have a MacMini, with 1.5GB of RAM, and I run QEMu, Bochs, and various other emulators to run Windows XP (and others) to test some .NET v2 code and it runs fine, but far slower than ideal and I do get some mouse cursor issues.
However, I would recommend Microsoft Virtual PC for the Mac with is for PowerPC processors only as it runs Windows XP with .NET v2 and is fast enough to be usable if there is enough RAM available. I would recommend more RAM. Microsoft have optimisations in Virtual PC that make Windows XP run faster. I don't know what the optimisations are, but remember that there were PowerPC versions of Windows XP and that the XBox runs the later Windows 2003 Kernel on PowerPC (which is just a development of XP....)
One other thing... I am a .NET and Java Developer, but do C/C++ and Java on POWER so do use an iBook for my main development. When I want to develop .NET code I download the Mono framework - developed by the Gnome development team at Novell. It runs fine on the Mac, includes a development environment, and is completely free. You MAY find that the application will run natively on the Mac using Mono, depending what classes have been used by the developers.