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What causes a "Runtime Error 372 - Failed to load control 'LFile' from SKCL.dll. Your version of SKCL.dll may be outdated"?

Published date: 27 June 2019

This error usually occurs when authorizing Concept, Proworx or Control Expert 14 (Unity Pro software. The SKCL.dll must reside in the \windows\system32 or \winnt\system32 folder. If it currently resides in this folder, you may need to register the .DLL.
To do this, bring up a DOS shell and type:

c:\> regsvr32 skcl.dll

You should then be able to launch the Authorization utility.

Legacy KB System (APS) Data: RESL173035 V1.0, Originally authored by on , Last Edited by on
Related ranges: Concept

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