This is an application that assists in making applications large address aware. When a 32-bit application is large address aware, it can access up to 4 GiB on x64 operating systems and all memory that isn't used by the operating system and other applications on x86. 64-bit versions of Windows require no modifications to the operating system to benefit from this application; however, in 32-bit versions of Windows, you must increase the user memory setting. Instructions how to do this are in spoiler below. It is not advised to use this application if you have less than 3 GiB of RAM. This application may not work on older executables (predating 2000). Basic mode: 1) Open an executable to modify (click on the "..." button to browse). Alternatively, you can drag and drop a file on the gray text box. 2) Check or uncheck the box specifying whether or not you want to make it large address aware. 3) Click on save to commit the changes. Intermediate and advanced mode (Advanced shown): 1) Add files through the "Add" drop down menu or click on on Add Files. Alternatively, you can drag and drop the files into the list view. 2) Select the files you wish to modify by checking the boxes or using the "Select" drop menu. 3) Either click on "Switch Large Address Aware" (turns true to false and false to true) or select an option from the "With Selected" drop down menu. 4) If you wish to remove files from the list, you may do so in Advanced mode via the "Remove" drop down menu. Requirements: .NET Framework 3.5 or newer (get the latest version from Windows Update under optional updates). Disclaimer: This software is provided without guarantee nor warranty. Use at your own discretion. The creators of this software and the owners of this site cannot be held liable for any damages inflicted. Spoiler: Applications Known to Benefit from Large Address Aware AutoCAD (32-bit versions) Company of Heroes - Patched in unknown version Corel PaintShop Pro X3 The Elder Scrolls V: Skyrim - Patched in 1.3.10 Kerkythea 2008 Echo Galactic Civilizations II Mass Effect Saboteur, The Sid Meier's Railroads! Silent Hunter 4 SimCity 4 Deluxe Sims 3, The - Patched in 1.17/2.12/3.8/4.5/5.2/6.0 Sins of a Solar Empires - Diplomacy S.T.A.L.K.E.R. Supreme Commander Supreme Commander: Forged Alliance World Builder for Command & Conquer 3: Tiberium Wars & Command & Conquer 3: Kane's Wrath World of Warcraft - Patched in 4.1 Process Monitor: Process Monitor is useful in discovering if making the application large address aware will be helpful. Spoiler: Instructions for allowing applications to use more RAM in 32-bit operating systems (> 2 GiB RAM required) Spoiler: Windows 2000 1. In Windows Explorer, navigate to the system partition. This is the partition that holds hardware specific Windows files such as Boot.ini and NTLDR. 2. If you cannot see the Boot.ini file, it could be because the folder options are set to hide protected operating system files. If this is the case, in the Explorer window, click Tools, Folder Options, and then click View. Clear the Hide protected operating system files (Recommended) check box. When prompted, click Yes. 3. After the Boot.ini file is visible in Explorer, right-click the file, click Open With, and then click Notepad to open the file. 4. Add the /3GB switch to the end of the line starting with "multi" under the [Operating Systems] section. 5. Save the changes and close Notepad. 6. Restart the computer for the change to take effect. Source: http://technet.microsoft.com/en-us/library/bb124810(EXCHG.65).aspx Spoiler: Windows XP, Server 2003 Warning: A lot of people are reporting problems with changing user space on Windows XP 32-bit. Unfortunately, upgrading the operating system to 64-bit is the best solution. If you decide to proceed anyway, just know that you may have to put it back to the way it was in boot.ini. 1. Right-click My Computer and select Properties. The System Properties dialog box will appear. 2. Click the Advanced tab. 3. In the Startup and Recovery area, click Settings. The Startup and Recovery dialog box will appear. 4. In the System startup area, click Edit. This will open the Windows boot.ini file in Notepad. 5. In the [Operating Systems] section, add the following switches to the end of the startup line that includes the /fastdetect switch: /3GB 6. Save the changes and close Notepad. 7. Click OK two times to close the open dialog boxes, and then restart the computer for the change to take effect. Source: http://technet.microsoft.com/en-us/library/bb124810(EXCHG.65).aspx Spoiler: Windows Vista, Windows 7, Server 2008 1. Open command prompt with Adminitrator rights. To do this, go to Programs, Accessories, right-click on Command Prompt and select "Run as Administrator." 2. Enter the following at the prompt and press enter: Code: bcdedit /set IncreaseUserVA 3072 3. Close the prompt and restart the computer. Spoiler: Version History 2.0.4 - Drag and Drop now only accepts executables. Added Remove -> From List and History -> All and Selected menu options. This is useful for if you enable "Load Previous Files." 2.0.3 - Adds an option for loading previous files. Note that enabling this, the application will hang on startup or immediately after checking it as it attempts to load all the files previously examined by the application. 2.0.2 - Fixed a major bug in 2.0.1 that would prevent it from working. 2.0.1 - Adds basic multithreading support. 2.0.0 - Has three modes (Basic, Intermediate, and Advanced) with drag and drop support, the capability of handling multiple files simutaneously, and numerous other major changes. Spoiler: Known Bugs Drag and drop from the desktop may not work (it will show the access denied icon when hovering) on some computers with UAC enabled because the program requires higher permissions than the desktop. Use the browse functionality to add the files if this is the case.