I want to Move my Company (With 100 Pc's) from Windows to Linux (Fedora / Ubuntu). I have knowledge of Linux but I want to know if can find a Fully functional software for running windows Software on Linux. Like My Organization has some Package for our own software. I want to install it on linux... Is it possible ?? Any Software is available for this thing ??

You can try http://www.winehq.org/, but it doesn't guarantee to be able to run everything MS on Linux.
You can't natively run MS .exes on Linux.
You could use VMs I suppose, or dual boot if necessary.

I'd also point out that Fedora is RH's R&D / bleeding edge distro. It is NOT suitable for serious office use.

Also look at Crossover---it is WINE with a friendly front end + (paid) support.

For custom SW, I would not assume that WINE or Crossover would work---but then you can just port it to Linux.

As others have mentioned, Wine, but it may not work for every program you want.
I just wanted to add, (even though you say you 'already have knowledge of Linux') That Windows isn't the only operating system with an abundance of software, and you while you probably won't find the exact program ported over from Windows to Linux, you may and quite possibly, depending on what it is, may find a good alternative that does the exact same thing, sometimes even better.

My suggestion is to convert one PC in your office to Linux and use it for 6-12 months to evaluate whether Linux can satisfy your business needs. No offense but your question suggests you still need to do a LOT more research. For starters, you haven't even told us what your company does or the software applications your employees use, how can we possibly even begin to answer your question without those details?

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Good advice by snowpine. +1
Do that!

One fun idea you can try is to put a Linux PC in the employee break room for web surfing/games. Don't even tell them it is a Linux machine, just quietly put it there to see how they respond/react to using the new operating system in a low-stress situation.

Also I have to ask, what is stopping you from booting a Linux Live CD on your machine and testing for yourself whether this business-critical mystery application works? That would give you a much more accurate/definitive answer than asking a bunch of strangers on the internet whether we think a theoretical imaginary application might work.

If you are going to ask 100 employees to train and adjust to a completely new OS then shouldn't you "proof of concept" by first testing your own ability to perform the tasks?

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Anything I have every developed for DOS or WINDOWS operating systems, and most of what I developed for CPM, I could easily port as source and compile on Linux. Some of the COBOL and FORTRAN I used on MAINFRAME and old IBM systems would need serious modification, and the kind of LIBS I used no longer exist (or at least I have never found them for Linux).

My preference would be to see how quick and easy it would be to make my in-house software into a native Linux application. You might be surprised and how much better it runs once fully migrated and tuned for the Linux environment!

DO NOT - repeat DO NOT install fedora on 100 machines in the office!!!!
AGAIN -----
DO NOT - repeat DO NOT install fedora on 100 machines in the office!!!!

fedora is a Research and Development FAST DEVELOPMENT distro

for the office
-- buy -- yes buy $$$$$
RHEL 6.3 desktop
or SELD11 -- SUSE Enterprise Linux Desktop 11
or a paid support contract from Canonical for Ubuntu help

both are DESIGNED for the office environment

and BOTH Novell or Red Hat and Canonical will help you migrate over

John VV;
Could you clarify your opinion in re using Fedora?....

Seriously, there's an important point here---the real question is if and how to set up the organization on Linux---the choice of distro is secondary.

Agreed. Fedora doesnt have long enough support to make it worthwhile IMO, besides other issues.

Or dont pay Red Hat, SUSE or (bluegh!) canonical.

Just install a distro qwith a decent lifespan. Slackware, debian, maybe even a ubuntu LTS if you and/or your users can deal with the horror that is unity (and no, getting lubuntu/xubuntu/kubuntu wont help, they arent LTS releases anymore).

fedora is a FAST passed R & D distro
YOUR OFFICE will be the alpha/beta testers
you WILL end up with some update that would KILL every computer in the office UNTIL the bug gets fixed

or

seeing as fedora is the very newest of the new
And likely at some point some program will not run because that program dose NOT YET use the VERY new software in fedora

about 50% to 80% of all software i ever built on fedora
needed to be hacked FIRST to just build on fedora
some were simple one liners
others were NOT

Then add to that the 13 month life span
with a NEW and often VERY VERY different NEW release EVERY 6 months

so
basically every 6 months you will be doing NEW clean fresh installs of the new fedora on ALL 100 machines
at about 30 to 60 min. per box and 100 computers

150 to 300 HORUS -- the max. time

DO YOU WANT to do all that amount of work EVERY 6 months ????

then add to that the bandwidth JUST for installing updates
a full gnome & kde install can get 3+ gig's of updates in JUST the first 3 months



pay or do not pay for 24/7 EXPERT support

but your boss AND you will sleep better at night knowing that YOU did not royally mess something up

the for pay support people they are the experts on that operating system ( well should be )

rhel:
is not free - 10 year life span
CentOS
: is free -- 7 year life span, BUT ONLY FOR THE CURRENT minor release
so you will need to upgrade often - but THIS is normally very easy

SELD is not free -- long term support
OpenSUSE 12.2 - free -- 18 month life span




rhel/cent/fedora are "RPM" based distros
Ubuntu/Debian are "deb" based distros

two different camps on just what a OS is and how it is installed and supported

think
Democrat VS republican
Ford VS GM
Orange VS Green

Obviously you people are 101% Right for converting Desktop to Linux. But still BOSS is the BOSS... and allow me to tell you real story. After a year again Microsoft send a Notice for Pirated Windows Xp (As in Pakistan every does use Pirated Windows). And BOSS just ask us to get a training at company's cost and convert every thing to Open Source.
It was the Story.

Now what does 100 Clients does Use,
(1) Customized Software of Our In-House Development.
(2) Google Chrome (Chromium does replace it but maps.google.com just bluring the maps).
(3) And Outlook express (Thunderbird Replaces it Beautifully).
(4) MS Office ... Libreoffice just do that work.

Till now i have tested Fedora (Crashed alot), ubuntu (Boss dosent like interface), linux mint (our hardware is very low... 1.5 GHz with 256 RAM...) so it does require 512 and high speed CPU with a good graphic Card...

I amposting here just because i want an Operating System linux based. Which is very light weight, thunderbird and libreoffice installed in it, and it should run on 256 RAM.. there are Client systems that have 512 and 1 GB RAM too. But i want to Install single Operating system on all of them. so that Trouble Shooting can be easy.

Now Please Suggest as soon as you can. Please

Chrome, Thunderbird, and Libreoffice are good choices and can be installed on any Linux distribution, with sufficient hardware resources. 256mb RAM is not very much in 2013. Take a look at distributions that use the lightweight LXDE desktop environment (such as Lubuntu or Debian+LXDE). Or upgrade the RAM---the cost of the RAM upgrade is very small compared to the cost of wasted labor.

But none of us can answer whether "Customized Software of Our In-House Development" will run correctly on Linux without more details. Have you tested this software in Linux using WINE as we suggested 7 months ago???

You should be using something like Debian Stable in an office environment, not a cutting-edge distro like Fedora. You should also be looking at LXDE if you have machines with only 256 mb of RAM. Even installing on these machines is going to be difficult with any distro. Upgrading RAM is not expensive, especially small/older simms for machines like that. Whether your custom software will run under Linux or not is hard to say, you'll have to experiment with Wine or CrossOver, or have it re-written and compiled for Linux.