LANSA and VLF components can be incorrectly recognized as an unwanted program by some anti-virus software

Date:3 August 2010
Product/Release:Visual LANSA Framework - All Versions
Abstract:The VLF component DW_T01.DLL is recognized as a virus by some anti-virus software
Submitted By:LANSA Technical Support
Updated:4 July 2013

Description:

Some anti-virus software, for example AVIRA's AntiVir, can incorrectly flag LANSA shipped DLLs as potential virus or unwanted program during a Visual LANSA installation. If files are flagged and subsequently quarantined, deleted, renamed or denied access by the anti-virus software, this will cause both LANSA and VLF application failures.

Some objects that have been reported to LANSA as flagged as unwanted programs are
DW_T01.DLL
VF_Prompt_SnapIn.exe
VF_FPM10.dll

Solution:

The Installing LANSA on Windows Guide states the following in 2.2 Visual LANSA General Checklist.

Before starting, you should have:

  • Turned off your anti-virus software. Please leave it off while running the install/upgrade.

To avoid potential install or execution failures, you should follow the recommendation above during a Visual LANSA install. If the file has already been flagged and quarantined, you should follow the anti-virus software's instructions to release the file from quarantine.