Upgrading to ExtendSim 10

1 - Upgrading to ExtendSim 10 from an earlier ExtendSim release.

Click on the icon for the ExtendSim package you wish to upgrade to. You'll be able to pay for your upgrade and download a Trial version of 10 from here.

Not sure which package you want to upgrade to? Check the ExtendSim Product Advisor.        


                    ExtendSim Pro                    ExtendSim DE                      ExtendSim CP           


2 - Which package do I upgrade to if I'm using ExtendSim AT 9?

Depends on the type of models you're building. If you're building discrete event models, upgrade to ExtendSim DE. If you are using the blocks from the Rate library in your models or want to use the new Reliability components, upgrade to ExtendSim Pro.

For more details on which package may work best for you, use the ExtendSim Product Advisor.

3 - Can I copy objects directly from ExtendSim 9 into ExtendSim 10?

You cannot copy objects in models (graphics, text, hierarchical blocks, databases, etc.) from release 9 or earlier directly into ExtendSim 10. Instead you must open the model file in ES 10. Then, ExtendSim will convert it to an ExtendSim 10 file.

4 - ExtendSim 10 model compatibility with previous versions.

ExtendSim 10 is upwardly compatible and will read in models built in legacy ExtendSim versions 9, 8, and 7.

If you created a custom library in a legacy version, before opening the model using the custom libraries, open the custom library. Go to Library > Library Tools > Compile Libraries... Select your custom library and click Compile Selected Libraries. This will recompile the library creating an ExtendSim 10 library with a .lbr extension. Then, open the model in ES10.

For complete details on upgrading to ExtendSim 10, please see Transitioning to ExtendSim 10.

Note: ExtendSim 10 is not backwardly compatible. Models and blocks you build in ExtendSim 10 cannot be read by earlier versions, such as ExtendSim 9 or ExtendSim 8.

5 - Keeping ExtendSim 9 Network license when upgrading to 10 Floating license.

When upgrading an ExtendSim 9 Network license to an ExtendSim 10 Floating license, there are special considerations to take into account so you can have a complete and successful transition to ExtendSim 10.

Unlike earlier upgrades, ExtendSim 10 is a complete rewrite of the ExtendSim product. Therefore, we expect that customers who upgrade from releases prior to ExtendSim 10 might need additional time to convert their models and libraries to the new format.

As stated in Installing & Activating • Floating Licenses, you may keep the Network license of ExtendSim 9 and its upgrade, the Floating license of ExtendSim 10, installed and running simultaneously for an up to a six (6) month transition period after the Floating license of ExtendSim 10 has been activated. 

We understand and accept that the simultaneous installation of both releases might result in ExtendSim being used by more than the authorized maximum number of concurrent users; we hold you harmless if that occurs during the transition period.

If you need an extension on the transition period, contact us prior to the expiration date.

6 - Legacy libraries.

Legacy libraries are older libraries that are no longer supported, could result in problems in new releases, and at some point will not be included with ExtendSim.

  • Legacy files are only supplied for a limited period of time so that you can:
    • Open older models and hierarchical blocks that use those libraries.
    • Convert those models and hierarchical blocks to using the new libraries.
  • During its history, the following libraries have been relegated to Legacy status:
    • With the release of ExtendSim 10, the Plotter library has been relegated to Legacy status. The new Chart library of ExtendSim 10 replaces the Plotter library. Convert existing models to using the new Chart library and avoid using the Plotter library when building new models.
    • With the release of ExtendSim 7, the following Extend 6 libraries were relegated to Legacy status:
      • Animation
      • BPR
      • Discrete Event
      • Generic
      • Manufacturing
      • Quick Blocks

NOTE: With the release of ExtendSim 10, these Extend 6 Legacy libraries are no longer included. ExtendSim 10 is NOT compatible with and does not support Extend 6 Legacy libraries.

7 - Converting custom blocks from ExtendSim 9 to 10.

Before using ExtendSim 10 to open a custom library or open any model that uses custom blocks created in releases prior to 10, note the following:

If your custom blocks have external source code

  • First remove the external code using your current release (e.g. ExtendSim 9.3).
  • Then COPY your custom libraries (with the external source code removed) into the ExtendSim10\Libraries folder.

If your blocks use includes you’ve developed from scratch

  • Copy your custom includes into the ExtendSim10\Extensions\Includes folder.

If your blocks use the includes that shipped with ExtendSim 9.3.0 or earlier

  • For includes that shipped with ExtendSim 9.3.0, you don’t have to change block code or include suffixes (e.g. change “Distributions v9.h” to “Distributions v10.h”) until you want to. In addition to the ExtendSim 10 includes, 10 ships with the includes from 9.3.0; they are located in the ExtendSim10\Extensions\Includes\Legacy 9.3.0 folder.
  • For includes shipped with ExtendSim releases prior to 9.3, rename copies of those includes, put those renamed includes into the ExtendSim10\Extensions\Includes\Legacy 9.3.0 folder, and change your block code to use those includes.

If your custom blocks use modified ExtendSim 9 includes that we sent to you after 9.3.0

  • Those changes are already in the ExtendSim 10 includes. You can either change your block code to use the 10 includes or copy the modified includes from ExtendSim 9.3 into the ExtendSim10\Extensions\Includes\Legacy 9.3.0 folder such that they replace the non-modified ExtendSim 9.3 includes.

NOTE: Before opening any models, use the ExtendSim 10 Library menu to open custom libraries and test that you've properly made the above changes!

Other Things to be Aware of When Converting Custom Blocks

  • The first time you open custom libraries in ExtendSim 10 or open models that use custom blocks, the libraries will automatically convert to 10, recompile, and get saved as copies with the extension “.lbr” (rather than “.lix”). That process also protects your prior-release libraries from being overwritten.
  • Since libraries have a different extension in ExtendSim 10, if you use the extension with the library name anywhere in your code you will need to change the extension. Common places where this could occur are in FileIsOpen, OpenExtendFile, PlaceBlock, and so forth.
  • The new right-click-connect feature for adding and connecting blocks is database-based and can be adapted for your custom blocks. You can increase the number of common blocks, add your custom blocks, and so forth. If you have any questions, initiate a Support ticket.
  • If any of your blocks are based on an ExtendSim equation-based block:
    • Line break and line feed changes in 10 require that you alter your code. For assistance, see the “12/21/2016” comment in the Equation v10.h include file.
  • Since ExtendSim 10 is a 64-bit application, the external applications that your custom blocks exchange data with, as well as the drivers used to exchange that data, must be 64-bit compatible. This primarily applies to external applications using ODBC and ADO.
  • Regarding DLLs or Shared Libraries:
    • DLLs or Shared Libraries called by ExtendSim must be built for 64-bit execution. Either recompile your current 32-bit DLL as a 64-bit DLL or obtain a 64-bit version of the DLL from the vendor.
    • If your code calls a DLL or Shared Library that returns a pointer, you need to change the code to save the returned value to a pointertype. See the Technical Reference for more information.
    • The procedure address returned by DLLmakeProcInstance and similar functions is NOT a 64-bit pointertype variable. Instead, it is a 32-bit (4-byte) integer index that points to a pointer internal to ExtendSim 10. This means the 32-bit block code used in previous releases is compatible with the 64-bit code of ES10.
    • DLLLongCFunction, DLLLongPascalFunction, and DLLLongStdCallFunction all call a DLL that returns a 64-bit integer that can be saved as either a ModL integer (32-bit) or, if needed, a pointertype (64-bit integer/pointer).
  • Each animation object now has a Properties dialog that allows you to see the object’s zOrder, exactly positioning it within the layers of animation objects.
  • Use the Icon Positioner if model connection lines are misaligned:
    • When models that were built prior to ExtendSim 10 are converted to ExtendSim 10, the position of the model’s blocks could be slightly different, causing connection lines to be unaligned. In those cases, the Icon Positioner can be used to adjust the relative location of the icon within the Icon tab so that the connection lines to the block are correctly aligned. This adjustment has already been made in the current ExtendSim libraries, but you may want to use the Positioner for any custom blocks that have been converted from earlier versions.
    • The Show icon positioner checkbox, located in the Icon tab of the block’s structure, hides and shows the Icon Positioner. By default, the Icon Positioner is located at the upper leftmost position of the icon’s graphic items. The Reset Icon Positioner button resets the location of the Icon Positioner to the default.
    • To use the Icon Positioner, first determine approximately how many pixels and in what direction the icon needs to move so that the connection lines are aligned. Then in the Icon tab select the Icon Positioner and move it with the cursor or the keyboard arrow keys.
    • There is also a ModL function, blockAdjustPosition, that uses the location of the Item Positioner to shift the location of the block by the offset of the positioner location.
  • DateToString, TimeToString, and CalcDate are no longer supported. See instead the EDDateToString and EDCalcDate functions in the Technical Reference.
  • There are new EColor functions that store the color information as a single integer, rather than using RGV or HSV. (Legacy functions that use and support the old color information are still working in ExtendSim 10.)
  • As of release 10, ExtendSim no longer supports Dynamic Data Exchange (DDE). It is an outmoded approach that's incompatible with many IT setups, is no longer recommended for use, and is not really being supported by Microsoft. Use instead any of the other IPC capabilities ExtendSim supports, such as OLE.