Detection exe is not a win32 application. Not a win32 application, what should I do?
You may have a problem where the program you are trying to run is corrupted or even missing. In this case, Windows will not be able to run the file properly and the operating system will generate an error is not a Win32 application. Typically the error is that the executable is not a valid 32-bit application, so it's immediately clear that we have a big problem. However, don't worry because there are ways to get things back on track. It's possible that while downloading the program, the executable file was corrupted or the download didn't complete, or maybe it's not compatible with the version of Windows you're currently using. This may be due to the source from which the file was downloaded. We always recommend downloading executables from the main source if possible.
How to fix if a program is not a Win32 application
The first thing to do is remove the program And download it again from an official source. This time, make sure the file download is 100 percent complete before attempting to install. Now, if you have a CD with the program, then it's a good idea to try to install it from that physical media. Yes, we know that most people today don't use physical media, but for those who are still living in the hardcore past, this is the option for you. What to do if the program is already installed, but cannot start?
- In a scenario where you are having problems with an already installed program that was working before, make sure that it has not been uninstalled. We strive to launch applications from a shortcut, and there are times when the file is deleted, the shortcut remains.
- Check if you are dealing with damaged hard drive. This may cause applications to crash. In such a situation, I recommend doing defragmentation and .
- If this doesn't help, you are dealing with a bad file. Any file association can be changed to .exe. Make sure if you download an executable it is always the extension at the end .exe.
The file is not associated with the desired program
When it comes to the Windows operating system, each file extension is associated with a program. Be it .exe, .jpg, .png, .txt, .zip, etc. They require a default program to open them. You may be dealing with a situation where the wrong program has been assigned, so it is wise to check if this is indeed the case and make the necessary changes. Let's look at how to change file associations in Windows 10.
- Go to Settings > Apps > Default Apps Scroll down and you will see Select default apps for file types.
- If you haven’t identified anything for yourself, you can click Reset to have Windows restore default settings.
Virus or malware problem
In the worst case scenario, your computer is infected with a virus, worm, Trojan, or malware. If this is the case, then your antivirus has neutralized the malware that was in the executable file, for example.exe, and you will no longer be able to run the program. This is partly good news. Check your antivirus program to make sure it has been quarantined and take the necessary steps to permanently remove it from your computer. Write in the comments if nothing helps you and you don’t know what to do, I will look for additional methods based on your requests and add them to the manual. Good luck!
When launching some applications, the user may encounter this software glitch.
The system cannot run the exe file under a 32-bit version of Windows.
Main reason This failure means the launch of a program that is not compatible with your operating system. That is, the program can be designed for a 64-bit version of Windows, a later version of the OS, or for a completely different environment Linux, Mac OS, DOS, etc. The application is not multi-platform.
But this is not the only possible reason. Perhaps some necessary program file responsible for compatibility was deleted by a virus, antivirus, or the user himself, unintentionally or on purpose. Let's consider the probable elimination methods malfunctions.
How to troubleshoot
In case of incompatibility, do not rush to reinstall the OS. First, try running this application after restart OS.
The problem remains - try opening it in operating mode with another system. To do this, right-click on the application icon. IN " Properties» open the tab « Compatibility", try running in compatibility mode one by one in one of the proposed OS, while checking the run as administrator checkbox. 
Didn't help again - check OS updates, install the latest possible version of Microsoft.Net Framework and Visual C++.
Scan the system for viruses. Reinstall the program itself, turning off the antivirus for a while and try running it again.
The next way is to make changes to the system registry. Open the registry editor using the command regedit in the window " Execute"(Win+R). 
We follow the path:
Set the value to " "%1" %*» for both parameters presented there, so that it ends up as shown in the picture. 
Restart your computer and try opening the application again.
If this does not work, download and run the program from another resource - perhaps the error lies in the source code of the software itself. If possible use the original version applications without resorting to dubious hackers and pirated versions.
If this program was previously launched, but at some stage this error began to appear, try rolling back the system to a restore point to the moment when it was still working.
Question from one of the users
Hello.
I'm trying to install some game, everything seems to be fine, but when I launch it, I get the error "...Launcher.exe is not a Win32 application."I've been struggling with this for two days now, tell me what to do with this error, is it possible to somehow eliminate it with a little bit of effort...
Good day!
This kind of error is not uncommon, and it can occur in a wide variety of applications, including games. It is difficult to indicate what the reason might be in your specific case, especially since not even the name of the game is indicated... 👀
Nevertheless, in this short note I will give some tips that will help eliminate the most common causes of this error.
Reasons for the error ("...Win 32.")
Usually, this error occurs immediately after launching an application. It looks approximately like in Fig. 1. The only thing that may distinguish your error variant is a different EXE file (those. not launcher.exe) .
Rice. 1. Typical type of error when starting the game // Not a win32 application
Reason #1: the game file was not loaded or it was damaged during copying
The most common reason for this error to appear is haste. Those. Many players are impatient to launch a game quickly, and they often start installing or launching a game that has not even been fully downloaded!
In general, it is best to pay attention to hash sums files. If anyone doesn’t know, this is a special algorithm that gives each file its own unique set of letters and numbers (for example, 32 characters). Those. if the files differ by only 1 byte, their hash sum will be different!
Hash sums are very useful when transferring files over the network - by comparing the original sum with the sum of the downloaded file, you can assess whether it is damaged (hence they have another name - checksums) .
There are several algorithms for determining checksums, the most popular: CRC, MD5, SHA1. When downloading many files (including torrents), checksums are always indicated (example in Fig. 2).
Rice. 2. Checksums
To determine the checksums of a downloaded file (including a game file) - simply launch Total Commander, click menu "File" and calculate the amounts (see Fig. 3).
Total Commander
One of the best commanders, designed to replace the conductor. Allows you to easily and quickly work with files, archives, FTP servers, disks, etc. Moreover, it is much more convenient than a conductor! Many users install this program one of the first after installing Windows...
Rice. 3. Total Commander - calculating checksums
By the way, as for the game: if you have the game on disk, try reinstalling it; you can also download the game from another source if your downloaded copy refuses to start (perhaps just a broken file was posted by developers/distributors initially).
Reason #2: not a Windows application
Often this error (note: with Win32) appears due to the fact that in Windows they are trying to run an application that is not intended for this system! For example, this application could be DOS, perhaps for PDP-11, ZX-Spectrum, BSD, or, in general, garbage.
The easiest option is to read the description on the Internet about this game (file, program). Perhaps it is simply necessary emulator ?
Emulator is a special program that can recreate a specific environment in Windows. For example, there are DOS emulators that will allow you to run applications that refuse to run on Windows.
By the way, Windows has a built-in special function that is designed to ensure compatibility of old programs with new operating systems.
If a program does not work for you, just right-click on it and select from the context menu "Properties".
Then open the tab "Compatibility" , check the box "Run the program in compatibility mode" and select an older Windows OS on which the program worked well before. Save the setting and try running the program again - in many cases it helps (see Fig. 4).
Rice. 4. Compatibility mode in Windows
Help!
How to run old Windows (and programs in it) in a new operating system: setting up a VirtualBox virtual machine -
Reason #3: the file is damaged by a virus / antivirus
If you get a similar error when launching several programs/games, there is a high probability that you have become infected with a virus. The fact is that when a virus infects a file, it violates its integrity (And checksum, by the way, too). Therefore, in this case you can also check the checksum of the file (note: I talked about this at the beginning of the article).
By the way, the culprits of the error may be antiviruses: when they heal, they often cripple. The fact is that by “cutting out” the virus code from an infected file, the antivirus also spoils the program itself - it stops working. And when you run it, you will see an error related to Win32...
Help!
Reason #4: lack of NET Framework
The absence of the NET Framework package, which is used in many applications, can also cause a similar error to appear.
In general, the system requirements of many programs (games) always indicate which package Net Framework they need it. If you don't have the package you need, just install it (different packages are available at the link below - can be downloaded from the official Microsoft website).
Help!
Microsoft .NET Framework and errors in games and programs. How to update or reinstall Microsoft .NET Framework –
How to find out which Net Framework is on Windows
Open then the "tab" Programs/Programs and components ", on the left side, open the link "Turn Windows features on or off" .
Rice. 5. Net Framework Packages
Undoubtedly, many users of modern Windows operating systems versions XP, Vista, 7, 8 and 10, when launching this or that application, were faced with a situation where the system itself writes “This and that is not a Win32 application.” There can be many reasons for such a message, however, the problem can be eliminated using basic methods.
First, let's look at the occurrence of an error associated with the launch of a particular program when a message appears informing the user that it is not a Win32 application. What to do, you ask? First of all, don't panic. There is nothing supernatural about this.
It’s just that the Windows system with its standard 32-bit architecture or its support does not recognize either the installation file from the distribution kit (Setup), or the executable file for launching the program itself (.exe), or the dynamic link library (.dll), or even the installed hardware driver device or virtual component.
The very concept of Win32, as is probably already clear, refers specifically to the 32-bit architecture, which is why malfunctions can occur even between operating systems of this category.
Why does the message appear that the file
The most common situation when errors of this kind occur is the incompatibility of files created in other operating systems such as Linux or Mac OS X. It is clear that executable files or related components have a completely different structure, not to mention the extension that is in the system registry Windows is not registered. That is why the system displays the message: “Error: such and such a component or program is not a Win32 application.” Let's take the same disk image file.
Extensions like .nrg, .iso, .cue, etc. Windows OS recognizes them without problems. As soon as you set the opening of a similar file, the system begins to “swear”. This is understandable, because such an extension is provided only for Mac OS X systems.
In addition to such situations, you can also encounter compatibility problems with the Windows operating systems themselves in different versions and builds.
Why is the application not a Win32 program in different Windows operating systems?
If previously Microsoft specialized exclusively in 32-bit systems, with the advent of a new generation of processors and Windows 7 that support 64-bit architecture, the situation has changed.
Among other things, it is worth considering the change from the FAT32 file system to NTFS (NTFS5), and in Windows 8 and 10 to ReFS. There is probably no need to explain that an application designed to run in a certain environment (in this case, a 64-bit file system and NTFS or ReFS architecture) will not work on 32-bit systems, as well as in (which is practically very similar) .
The developers of new versions of Windows operating systems have taken a one-sided path. They left support for FAT32 and applications of 32-bit architecture in new versions of the OS, but completely excluded compatibility of 64-bit applications and file systems with old standards.
Now let's try to understand in more detail why an error occurs indicating that some component is not a Win32 application. What to do and how to deal with it in general?
Damage to the archive or installation distribution
One of the reasons, in addition to the above-mentioned aspects related to system incompatibility, is damage to the installation file or archive, which occurs quite often. The archive, for example, may, so to speak, be underloaded, it may have a specific password, etc.
In this case, there is a universal and simplest solution when the system displays a message that some file or program module is not a Win32 application. What to do in such a situation? It's very simple. You just need to try again or archive and start the installation or unpacking process again.
Specifics of solving the problem
Sometimes the above method helps, sometimes it doesn't. If the problem still remains, you can use a universal and most effective remedy, which few people know about. Oddly enough, one of the most trivial methods for fixing this error is to download the specialized registry file Win32.reg from the Internet. After launching it, the system will ask the user for permission to add data to the registry. You just need to agree to the changes and then restart your computer.
In some cases, the error may be due to an outdated version of the MS Framework. As is already clear, in such a situation you just need to update the platform to the latest version. If you have problems using this platform, you need to go to the program settings and change the value of Any CPU (any processor) to x86 (this is exactly the 32-bit version).
In situations where the “native” device driver is not accepted, it makes sense to find its updated version, which corresponds to the architecture of the “OS” itself. Naturally, you can install an x86 driver on a 64-bit system, but the other way around will not work. In general, it is better not to experiment, but to install a similar version on x64 systems right away. This will avoid many problems in the future.
Conclusion
From the above you can see that this type of error occurs very often. Well, let's say the component (module) is not a Win32 application. We discussed what to do above. In principle, these are the simplest and most effective methods. Of course, you can also go into the system registry, but this is not recommended for inexperienced users. Moreover, the process of manually adjusting keys is quite a serious matter, and it takes a lot of time.
Among other things, it is worth noting that downloading the system registry registration file may not always help. It is clear that it is almost impossible to guess. In this case, it is best to check the integrity of the files themselves and the compatibility of platforms such as the Microsoft Framework, additional Java-based components, etc. Developers, by the way, may still have problems with the compatibility of platforms such as the SDK for software developers. In general, it is possible to find a solution to the problem. As they say, there would be a desire.
Answers:
TU-154:
This message means that either the application is not a Windows application (it is intended for another operating system - for example, OS/2 or Linux), or the file is corrupted (damaged, under-downloaded...). In the first case, it must be launched under the OS for which it is intended; in the second, the original file must be restored.
Yu.A. Peysakhovich:
No way. It's just a DOS program or a program file that doesn't run at all.
Respondent:
"Not a Win32 application." Possibly a PDP-11, ZX-Spectrum, BSD, DOS application, or just garbage. If it writes about an EXE file, it is most likely damaged during copying, corrupted by a virus, or incorrectly “cured” by an antivirus.
Kuznetsov Yura:
Apparently, this exe file is simply damaged or under-downloaded.
Hood:
This may well be an executable file from Windows for another platform (CE, Pocket etc.).
Darth Emil:
This program is a DOS application, i.e. NOT 32 bit. You need an emulator.
Alexey:
This means that you are trying to slip Windows a corrupted (or even completely crazy) file and are trying to execute it as a program.
Toli@n:
The fact is that it could be a virus - also called Win32. But basically everything is correct, the file is damaged.
Smart guy:
Guys, not quite like that. THERE ARE 16-bit Windows applications that behave in this strange way. A typical example is the game Lines98. I don’t play it myself, but the secretaries sometimes had to take notes. So this game, which works normally in Windows98, refuses to run in WindowsXP, giving exactly the message “Not a Win32 application” described above in the question, and compatibility mode does not help. Unfortunately, I won’t tell you how to win with little bloodshed - I don’t know. Well, the big one is to install two operating systems, or Virtual PC. Although this is, of course, shooting sparrows from a cannon.
Xpert:
The same problem with NFS 3.4 games when running under Win2k/XP
Desamar:
The problem is this. If after “treatment” with an antivirus (in my case Kaspersky) the message “#$%.exe is not a Win32 application” is displayed, try to look at what is written in the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\exefile\shell\open\command If there there is something different from the line "%1" %* try to make a file with the extension *.reg with the following content =============== BEGINNING ============ REGEDIT4 @="\"%1\" %*" ============== END============ and run it. When asked to add a parameter to the registry, the answer is [Yes]. I hope this will save you from reinstalling the system.
Sergey:
After installing Kaspersky Anti-Hacker Firewall v1.7.130.0, the same situation occurred as you describe!!! Previously running programs refuse to start!!! It says: “Not a Win32 application.” Right-click on the file and uncheck the box: “Protect your computer from unauthorized actions of these programs.”
Lojka Varenya:
In this case, there are 2 options to get rid of the error. Or Windows has damaged the files, in which case you need to reinstall it. The second option is a virus. We need to get rid of the virus. I personally reinstalled the PC and everything worked.
Ibod:
Changing the registry branch helped me. Thanks for the idea.
Dimrun:
In fact, this is the W32.Jeefo virus. Information here: http://www.kaspersky.ru/find?words=w32.Jeefo&search=1
Kirill:
Changing the registry branch also helped me. Thanks for the idea.
Hook:
And if there are two computers on the same table, one of them is a laptop and there is a disk on it and everything that is on it opens and swings, then in the hospital it just writes that it is not a win32 application. What can you say about this?
Ivan:
It often happened like this: a blue window with a greeting appeared and the computer froze completely. After checking the C: drive, Win started from protected mode. I downloaded the so-called SP3 rus posted somewhere on the website. The problem basically remained. But once again, after checking, a message appeared: some file is damaged, insert a disk with Win SP2. I inserted it and clicked OK. Windows stopped loading and wrote on a black background that it could not find a file. I reinstalled Win SP2 and formatted the C: drive. But now all the files that are in the *exe folders do not start, the message appears: *.exe is not a Win32 application. It is impossible to view most ordinary files - either they do not open or they give an error.