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FlexNet Publisher

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FlexNet Publisher
Original author(s)GLOBEtrotter and Highland
Developer(s)Flexera Software
Initial release1988; 36 years ago (1988)
Stable release
2023 R1 (11.19.3) / February 23, 2023; 16 months ago (2023-02-23)[1]
Written inC/C++, Java
Operating systemWindows, macOS, Linux, and various UNIXes
Available inEnglish
TypeSoftware license management
Websitewww.flexera.com/producer/products/software-monetization/flexnet-licensing/flexnet-publisher/ Edit this on Wikidata

FlexNet Publisher (formerly known as FLEXlm) is a software license manager from Flexera Software which implements license management and is intended to be used in corporate environments to provide floating licenses to multiple end users of computer software.[citation needed]

Computer software can be licensed in a variety of ways. A license to use a piece of software may be associated with a specific machine (node-locked), permitting it to only run on that machine (node in a network); alternatively, a company may buy a pool of floating licenses and these licenses may be allocated dynamically to machines, a license being checked-out when a user begins using the software on any given machine and checked-in when the user finishes using the software. In this way, for example, a company might buy a pool of 50 licenses but support a user community of hundreds of occasional users of the software (so long as no more than 50 users ever want to use the software simultaneously).[original research?]



FLEXlm was originally a joint development by GLOBEtrotter Software and Highland Software in 1988. Highland's rights to the FLEXlm product were acquired by GLOBEtrotter in 1994; Highland continued as a reseller of 3rd party software. GLOBEtrotter was then acquired by Macrovision in 2000. Combining features from the Safecast protection system and FLEXlm, FlexNet featured product activation and executable wrapping, supporting floating licensing and node locked licensing models. Macrovision subsequently renamed FLEXlm to FLEXnet Publisher.[citation needed]

The original FLEXlm development team moved on to develop the Reprise License Manager (RLM) at Reprise Software in 2006.[citation needed]

On 1 April 2008 Macrovision's Software Business Unit, which included FLEXnet Publisher, was sold to the private equity company Thoma Cressey Bravo and subsequently relaunched as Acresso Software. It was a cash transaction valued at approximately $200 million.[2]

In October 2009 Acresso Software announced its name change to Flexera Software and FLEXnet Publisher was changed to FlexNet Publisher.[3]

A July 2011 announcement said that Teachers' Private Capital, the private investment department of the Ontario Teachers' Pension Plan, had agreed to acquire a majority stake in Flexera Software from Thoma Bravo, LLC, a private equity firm.[4]

The product is currently marketed by Flexera Software as FlexNet Publisher.[5]

Issues with bootloaders


Due to the way the digital rights management (DRM) works in FlexNet Publisher, FlexNet affects bootloaders; this makes FlexNet Publisher incompatible with drives encrypted with TrueCrypt[6][7] and renders Linux-based systems unable to boot.[8][9] The TrueCrypt developers also state that "the issue is caused by inappropriate design of the third-party activation software."[10]

Other license management software



  1. ^ "FlexNet Publisher Release History". Flexera. Archived from the original on 2023-05-08. Retrieved 2023-05-08.
  2. ^ "Acresso Software Press Release". Flexerasoftware.com. Archived from the original on 2 June 2013. Retrieved 27 October 2014.
  3. ^ Eric Lai (10 October 2009). "Acresso who? Macrovision spinoff changes name, again (Computerworld article)". Computerworld. Retrieved 27 October 2014.
  4. ^ "Teachers' Private Capital to Acquire Majority Stake in Flexera Software". Marketwire. Archived from the original on 2 October 2012. Retrieved 27 October 2014.
  5. ^ Centralized Management Eases License Server Administration. flexerasoftware.com. Retrieved 2016-11-21
  6. ^ "Freeze when you reboot a Windows system that has TrueCrypt Disk Encryption software and Adobe applications installed". Kb2.adobe.com. Retrieved 27 October 2014.
  7. ^ "TrueCrypt". Kb2.adobe.com. Archived from the original on 16 April 2013. Retrieved 27 October 2014.
  8. ^ "Colin Watson". chiark.greenend.org.uk. Retrieved 27 October 2014.
  9. ^ "Bug #441941 "grub fails after running Windows" : Bugs : "grub2" package : Ubuntu". Bugs.launchpad.net. Retrieved 27 October 2014.
  10. ^ "TrueCrypt". Truecrypt.org. Archived from the original on 16 April 2013. Retrieved 27 October 2014.