DisableUNCCheck registry key is created during Rational Synergy installation

Technote (FAQ)


Question

Why is the registry key 'HKLM\SOFTWARE\Microsoft\Command Processor\DisableUNCCheck' created during the installation of IBM Rational Synergy client?

Cause

When installing Rational Synergy client on Windows the 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor\DisableUNCCheck' registry key is added and set to 'allow'. This enables Uniform Naming Convention(UNC) paths to be used in the command prompt for the current directory. For security or other reasons this may not be wanted.

Answer

The registry key:


    ' HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor\DisableUNCCheck'

with value:
    0x00000001 (1)

is required so that UNC-paths can be used in the Windows command line interface (CLI).
All Rational Synergy processes running through cmd.exe and using UNC paths need this registry key and value. It is therefore not possible to delete this registry key and run Rational Synergy successfully.

Related information

Cmd.exe does not support UNC names

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Document information


More support for:

Rational Synergy
Installation

Software version:

7.1a, 7.1, 7.2

Operating system(s):

Windows

Reference #:

1427143

Modified date:

2013-07-02

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