Commented Unassigned: Script terminates during initialization when path defined by system environment variable doesn't exist [124]

Hyper-V OS: Windows 7 x64
PSAppDeployScript Version: 3.5.0
Powershell 3.0

Add-Type : (0) : Warning as Error: Invalid search path 'C:\Program Files
(x86)\Sybase\OCS-12_0\lib' specified in 'LIB environment variable' -- 'The
system cannot find the path specified. '
(1) : using System;
At C:\Windows\ccmcache\v\AppDeployToolkit\AppDeployToolkitMain.ps1:7603 char:4
+ Add-Type -TypeDefinition $QueryUserSessionSource -Language CSharp
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidData: (error CS1668: W...th specified. ':
CompilerError) [Add-Type], Exception
+ FullyQualifiedErrorId : SOURCE_CODE_ERROR,Microsoft.PowerShell.Commands.
AddTypeCommand
Comments: I wonder if Sybase used to be installed but then got uninstalled on this system? Perhaps it did not remove the environment variable when it was uninstalled? Because if that is the case, then the correct fix should be to remove the environment variable if the path in it doesn't exist.