LabVIEW 2015 Readme for Windows

Version 15.0.0

June 2015

This file contains important information about LabVIEW 2015 for Windows, including system requirements, installation instructions, known issues, and a partial list of bugs fixed for LabVIEW 2015.

Refer to the National Instruments website for the latest information about LabVIEW 2015.

Refer to the labview\readme directory for readme files about LabVIEW add-ons, such as modules and toolkits.

System Requirements

Installation Instructions

Product Security and Critical Updates

Known Issues

LabVIEW 2015 (64-bit)

Additions to the LabVIEW Help

Bug Fixes

Accessing the Help

Finding Examples

Automating the Installation of NI Products

How to Use NI Software with Microsoft Windows 8.x

NI Software Support for Microsoft Windows Vista, Windows XP, and Windows Server 2003

Legal Information

System Requirements

Windows Run-Time Engine Development Environment
Processor Pentium III/Celeron 866 MHz (or equivalent) or later (32-bit)
Pentium 4 G1 (or equivalent) or later (64-bit)
Pentium 4M (or equivalent) or later (32-bit)
Pentium 4 G1 (or equivalent) or later (64-bit)
RAM 256 MB 1 GB
Screen Resolution 1024 x 768 pixels 1024 x 768 pixels
Operating System Windows 8.1/8/7/Vista (32-bit and 64-bit)
Windows XP SP3 (32-bit)
Windows Server 2012 R2 (64-bit)
Windows Server 2008 R2 (64-bit)
Windows Server 2003 R2 (32-bit)
Windows 8.1/8/7/Vista (32-bit and 64-bit)
Windows XP SP3 (32-bit)
Windows Server 2012 R2 (64-bit)
Windows Server 2008 R2 (64-bit)
Windows Server 2003 R2 (32-bit)
Disk Space 620 MB 5 GB (includes default drivers from the NI Device Drivers media)
Color Palette N/A LabVIEW and the LabVIEW Help contain 16-bit color graphics. LabVIEW requires a minimum color palette setting of 16-bit color.
Temporary Files Directory N/A LabVIEW uses a directory for storing temporary files. National Instruments recommends that you have several megabytes of disk space available for this temporary directory.
Adobe Reader N/A You must have Adobe Reader installed to search PDF versions of all LabVIEW manuals.
Note  The following list describes restrictions for using LabVIEW on Windows:
  • LabVIEW does not support Windows 2000/NT/Me/98/95 or Windows XP x64.
  • You cannot access LabVIEW using a Guest account on Windows.

Installation Instructions

Depending on whether you are installing LabVIEW for the first time or upgrading from a previous version, refer to one of the following documents for information about installing LabVIEW:

  • LabVIEW Installation Guide—Includes information about installing LabVIEW, modules and toolkits, drivers, and hardware.
  • LabVIEW Upgrade Notes—Includes information about protecting existing VIs and projects before you install a new version of LabVIEW, as well as upgrade and compatibility issues and a complete list of new features in LabVIEW 2015.

You can access the LabVIEW Installation Guide and the LabVIEW Upgrade Notes at as well as on the installation media.

Note  If you purchased this product with an NI Software Suite or NI Product Bundle, use the installation media that shipped with your purchase to install this product.

Product Security and Critical Updates

Visit to view and subscribe to receive security notifications about National Instruments products. Visit for information about critical updates from National Instruments.

Known Issues

You can access the software and documentation known issues list online. Refer to the National Instruments website for an up-to-date list of known issues in LabVIEW 2015.

LabVIEW 2015 (64-bit)

When run on Windows (64-bit), LabVIEW 2015 (64-bit) provides access to more memory than a 32-bit operating system or a 32-bit application can provide. LabVIEW 2015 (64-bit) includes nearly all of the development environment features of LabVIEW 2015 (32-bit).

Refer to the National Instruments website for information about obtaining a copy of LabVIEW 2015 (64-bit).

Supported Hardware

LabVIEW 2015 (64-bit) supports many hardware devices. Refer to the National Instruments website for information about drivers compatible with LabVIEW 2015 (64-bit). For GPIB devices, you must use at least NI-488.2 2.6 for Windows. Refer to the specific hardware documentation for more information about compatibility with LabVIEW 2015 (64-bit).

Supported Modules

LabVIEW 2015 (64-bit) supports only the NI Vision Development Module. Refer to the Vision Development Module documentation for more information. No additional modules support LabVIEW 2015 (64-bit).

Additions to the LabVIEW Help

The following list contains additional changes to LabVIEW that are not included in the LabVIEW Help, the LabVIEW Upgrade Notes, or both:

  • National Instruments does not support remote front panels for Google Chrome starting from version 42. Visit the National Instruments website for more information.

Bug Fixes

The following items are the IDs and titles of a subset of issues fixed in LabVIEW 2015. This is not an exhaustive list of issues fixed in the current version of LabVIEW. If you have a CAR ID, you can search this list to validate that the issue has been fixed.

ID Fixed Issue
52263 Some operations on integer waveforms lose dt value
225616 Error 1172 (System.Reflection.AmbiguousMatchException) is returned when using the .NET invoke node to call a .NET method that also contains an additional generic version of the same method.
257275 Format Into String does not work with the %d format for numbers larger than I32
278730 Web Services ignore the No App switch on RT targets
315474 Feedback node with waveform data input, and greater than 2 iterations of delay, outputs an array of waveform
333388 Incorrect highlight execution order with LVOOP property node
348592 Select node causes buffer copy
361311 "Natural log of 1 + x" primitive incorrectly returns NaN for small positive values
372784 LabVIEW 2012 and later have added overhead to dynamic dispatch calls when compared to LabVIEW 2011
377653 There is inconsistent labeling on 'Constrained Nonlinear Curve' TRLM instance.
392232 Autopreallocate Arrays and Strings VI Property Can Crash LabVIEW when not in FPGA Context
392446 Installing LabVIEW on a Windows laptop decreases battery life
397550 LabVIEW can switch to different Front Panels or Block Diagrams when going between LabVIEW and other programs.
400736 Error -4403 returned from Write for Template VIs
401689 Constrained Non-Linear Optimization VI has Potential for Infinite Loop
408351 The Bookmark Manager window is not closed when 'Esc' key is pressed
413786 Help button does not work on Setup page of LabVIEW 64-bit Example Finder
413954 Slow VI compilation with complex VI
419089 Infinite loop in under certain conditions
421739 Quick drop ctrl+r needs to wire the To More Specific/Generic side terminal instead of center terminal
424089 The advanced analysis Kummer Function returns 'NaN' instead of correct values for certain combinations of input parameters.
425562 Scan from String requires a space between modifiers when using SI notation
426157 VI invoke node Find CtrlWithKeyFocus don't work with typedefs
434426 Reading from same UDP port twice simultaneously crashes LV
435756 Web Services reset all resource VIs to their default parameters (GET as Terminal/XML) when multiple files are simultaneously added to project.
437915 When converting a Timestamp into a string with the Format into String primitive, certain incorrect format strings will cause the End of file encountered error.
438751 Renaming a group in a Mixed Signal Graph crashes LabVIEW once there is a plot containing data
441262 Call Library Function Nodes maximum error checking mode incorrectly reports memory corruption with CStrs and PStrs.
443165 Modifying the dependencies of a Packed Project Library (PPL) may cause LabVIEW to crash
444759 Default probes should fit to probe watch window pane
444851 Encapsulated PostScript (EPS) is not supported on Mac 64-bit
447789 "RecipeBkUp::SanityCheck()" Crash
449869 "ICallPiccCallback" 0x89B93EF0
451059 "CProjectItemWrapper::GetPropertyBag(IlvProjectPropertyBag**)"
453489 Minimizing the lvlib group in VI hierarchy messes up the entire VI hierarchy.
458700 Equals? Function executes slowly on long strings
458724 Uninstalling myRIO Module 2013 causes LabVIEW Getting Started Screen to become unresponsive.
462624 Mouse wheel scrolling does not work on the Functions Palette.
463275 Using the same Application twice in installer causes unexpected behavior
463408 Log scale on a Graph does not use correct minimum with certain data
463760 Improved security of an authenticated session when used over an un-encrypted connection like http.
466635 Add new "Create Unique File" VI to vi.lib
468062 Path to does not handle network path
468921 Auto-populating folders may not update their contents correctly
469070 In some cases, Fract/Exp String To Number VI does not convert the string correctly
469178 Sound Examples do not have volume control
469269 Error when VIPM quits LV -- svcloc_interface.cpp line 1702
471706 Cannot paste into destination name of installer properties in LabVIEW 2013
474004 Multiple LabVIEW windows do not group in RHEL.
474143 Copy functions returns a permission error (error code 8) occasionally when running in a loop
474764 A VI can hang at Occurrences if Allow Debugging is disabled
476028 MAX/NIER report: Null pointer dereference in LVBroker.dll!CniLVBroker::HandleVIClose(niLVReq & req, int (void) *)
476714 The INI file created for a LabVIEW-built executable contains a truncated list of VIs in the "" line when enabling TCP/IP with multiple Exported VIs
477112 If you cancel the file dialog, it will never show again in Write to Measurement File Express VI.
477280 When using [VersionNumber], Application Builder post-build VIs do not get passed the proper path
477352 In the TDMS File Viewer VI, the menu becomes partially hidden after making the plot legend visible
477864 When a number of controls are grouped on a tab control page, switching to that page takes a long time, proportional to the number of controls grouped
477954 VI Analyzer throws error 1 when analyzing project with a Networked Computer under the Target Folder.
478485 Selecting a Polymorphic VI while loading a caller VI causes a crash due to missing polymorphic instances
478854 Source Distribution Target Directory not used, VIs placed in startup folder
478906 Conditional Double Probe does not handle NaN equality check
479161 Error 7 When Building Installer for EXE with Custom Destinations
480103 Using VirtualBench API through TestStand and the LVRTE causes crashes on exit
480480 Invoke Node shows the English shortname at the first drop in German LabVIEW
480921 Unable to delete and re-add a destination folder successfully in build specification of a LabVIEW Installer
484575 Issue writing to individual digital waveform channels in TDMS files
484662 LabVIEW Runtime installer should allow multiple versions in one distribution
484767 Bookmarks changed event does not return the path of the VI(s) in which the bookmarks changed
484940 Create Express VI tool throws Error 1099 when template VIs are marked as Source Only
485412 Make Ctr-W shortcut wire to inner terminals of tunnels
486475 LabVIEW crashes when adding a saved copy of an lvclass member to an lvlib
488710 Multicolumn Listbox Key Navigation is not consistent
489848 "Remove empty cases" option in case structure disappears when Subdiagram Label is visible.
490378 Report Generation Toolkit, has a reference leak.
490606 Web Service installer fails to install on Win Server 2008 R2
491093 Application Web Server fails to run on VxWorks when root directory has too many files
491198 Any VI that has a VI Documentation greater than 8000 characters will cause the context help window to truncate the documentation.
491539 Unexpected behavior with Resample Waveforms (Single Shot).vi
496699 LabVIEW crashes when attempting to reinitialize unused plots in plot legend of waveform graph
497131 The WebDAV when executed on a cRIO target can lead to a memory leak
497256 CoreAnimation thread warning when calling a LabVIEW-built Framework on Mac OS X 10.0
497516 Replacing a Waveform control with an Array(Silver) crashes LabVIEW with internal error in datamgr.cpp.
497755 Cannot reset the values of Build Specification Version in Set Build Specification Version VI to zero
499042 Incorrect Diagram Identifier reported by LV Compare tool when comparing case structures
500986 Error 1 generated in property node when remote debugging
501004 Performance improvements for 3D Plot VIs
501633 Variable Engine does not have a "Run-Time" product for deployment.
502081 Ctrl+shift+E (find in project) doesn't work for clone VIs.
502105 "New..." dialog only looks for VI templates in the LabVIEW directory, which is not writable on Linux systems
503234 The method "Synchronize in all Contexts" causes LabVIEW to crash.
505523 Diff and Merge do not work with Enable Hyperlinks
508525 Improve "Select a VI" experience with Quick Drop Replace and Insert
509097 LabVIEW crashes when sending an empty input array to the Preallocated Read from File VI
509204 Format Into String outputs an incorrect string when using Timestamp data and an order modifier
510063 LabVIEW does not exit properly after encountering a NIER exception
510881 LabVIEW Crash when saving Library containing Shared Variables with Class Object in Typedef.
510908 Application Builder slows when builds involve PPLs with controls in them
511588 Currently selected item in the Connector Pane selection menu is not outlined
511708 LabVIEW crashes when use "save method" to save the UDF VI if the MathScript RT Module and Control Design and Simulation Module are both installed.
511770 The Waveform Unbundle/Bundle node pair on InPlace Element Structures cannot be scripted
512153 Cursor in LabVIEW can disappear when switching between tools.
512294 Crash in search 1D array when run on VI with host interface node
512464 After making a change in Format Into String, the containing VI does not recompile automatically.
512761 The input XML containing "\n" hangs the LabVIEW storage VIs.
513188 Improved Bookmark Manager performance by adding additional caching.
513259 Substitute Actor VI does not transfer nested actors
513281 Improved error handling in
513457 "Change to Array" menu option should not appear on tab controls or XControls.
513871 MAX/NIER report: Access violation in lvrt.dll!std::_Tree
513963 Classes containing NaN values compare incorrectly when using the Equals function
514518 LabVIEW 2014 crashes upon close while an RFmx example VI is running continuously from a LabVIEW Project context.
515054 Icon transparency of VIs is not maintained when building a Source Distribution
515086 Building VIs with certain recursive dependencies can cause a LabVIEW crash
515223 Advanced TDMS Write broken wire behavior is incorrect.
515763 The To Long Integer conversion bullet can crash when converting a float64 array to an int32 array if the start of the input data (just after the dimsize) is not 16 bytes aligned.
515779 Invoke node Append String returns error 1043 while display style set to backslash "\" codes
515884 LabVIEW crashes when using the Class Browser to select a class which contains an accessor available via property nodes
515920 Memory issues due to timestamp handling in the Data Storage VIs.
516057 LabVIEW Application Builder API Build (path).vi returns unclear error 1055 when Build Specification name or target name is incorrect
516217 The WebDAV when executed on a cRIO target can lead to a memory leak
516227 UI Thread LabVIEW code cannot execute while a Time Stamp Control's 'Set Time and Date' window is visible.
516506 'Build All' error does not indicate which build specification failed.
516674 LabVIEW crashes when dragging a class member VI from the Class Browser onto an Untitled VI of a Library
516841 VeriStand crashes after manipulating a System Definition via the System Explorer
516905 Cannot get VI Path/Name for Type Definitions, Classes, or Global VIs if dependency is missing
517128 Error 1357 when building using two VIs with the same name and only capitalization differences.
517307 Mass Compile of VeriStand 2014 LabVIEW examples will crash LabVIEW
519216 LabVIEW crash when closing subVI Icon Editor that was opened from VI Hierarchy.
519533 IDFinder downloads the wrong version of VIs for Instrument drivers
519665 LV crashes when copying user event data while handling high priority user events
520343 Runtime popup menus appear on the Project properties dialog
521114 Property VIs of classes do not require that inputs/outputs match the class itself
521509 LabVIEW security update
524370 LabVIEW 2014 crashes on VI load if old error cluster controls are connected to case structures or conditional terminals

Accessing the Help

Refer to the LabVIEW Help, accessible by selecting Help»LabVIEW Help from LabVIEW, for information about LabVIEW 2015.

Finding Examples

Select Help»Find Examples from LabVIEW to launch the NI Example Finder. You can modify an example VI to fit an application, or you can copy and paste from one or more examples into a VI that you create.

Automating the Installation of NI Products

You can automate the installation of most NI products using command-line arguments to suppress some or all of the installer user interface and dialog boxes. However, starting with the August 2012 releases (products using NI Installers version 3.1 or later), you may need to perform additional steps before or during a silent installation of NI software.

If the NI product you are installing uses Microsoft .NET 4.0, the .NET installer may run before any NI software installs and may require a reboot before the installation of NI software begins. To avoid a .NET reboot, install .NET 4.0 separately before you install NI software.

For more information about automating the installation of NI products, refer to the following KnowledgeBase articles:

How to Use NI Software with Microsoft Windows 8.x

When you install National Instruments software on Microsoft Windows 8.x, you will notice a few additional tiles in the Apps view, including shortcuts to NI application software products such as NI LabVIEW, Measurement & Automation Explorer (NI MAX), and NI Launcher.

Using NI Launcher

NI Launcher helps you find and launch installed NI products. It provides you with a method of finding NI products similar to the Start menu in previous versions of Microsoft Windows. To use NI Launcher, click the NI Launcher tile in the Apps view. NI Launcher launches the desktop and opens a menu containing a list of NI products. Click any NI product to launch it.

Note  NI MAX does not appear as a desktop shortcut when installed on Microsoft Windows 8.x. You can launch NI MAX either from the Apps view or from within NI Launcher.

Pinning Frequently Used Applications

For convenience, you can pin your most-used NI applications, such as MAX, to either the Start screen or the Taskbar on the desktop, as necessary:

Current ApplicationIcon LocationPin to Action
Windows 8.x DesktopDesktop TaskbarRight-click application and select Pin to Taskbar
Windows 8.x Desktop Start screenRight-click application and select Pin to Start
Windows 8.x Start screenDesktop TaskbarRight-click application and select Pin to taskbar from the menu bar on the bottom of the screen

Finding All Programs

If you want to find a particular application or related files, such as documentation files, from the Start screen, you can access all installed files from the Apps view. To get to the Apps view, right-click anywhere on the Start screen and select All apps (Windows 8.0) or click the down arrow on the bottom left of the screen (Windows 8.1).

For more information about NI support for Windows 8.x, visit

LabVIEW Drops Support for Microsoft Windows Vista, Windows XP, and Windows Server 2003 in 2016

LabVIEW will drop support for Microsoft Windows Vista, Windows XP, and Windows Server 2003 as of July 1, 2016. Versions of LabVIEW that ship after July 1, 2016 will not install or run on Windows Vista, Windows XP, or Windows Server 2003. For detailed information about NI application software product life cycles, visit and enter one of the following Info Codes:

Product Info Code
Measurement Studiomstudiolifecycle

Legal Information


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End-User License Agreements and Third-Party Legal Notices

You can find end-user license agreements (EULAs) and third-party legal notices in the following locations after installation:

  • Notices are located in the <National Instruments>\_Legal Information and <National Instruments> directories.
  • EULAs are located in the <National Instruments>\Shared\MDF\Legal\license directory.
  • Review <National Instruments>\_Legal Information.txt for information on including legal information in installers built with NI products.

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