The file tabs tool window failed to show up again when I upgraded to 20.00.03.
SlickEdit Pro 2015 (v20.0.3.0 64-bit)
Serial number: [redacted]
Licensed number of users: Single user
License file: C:\ProgramData\slickedit\20\slickedit.lic
Build Date: May 25, 2016
Emulation: CodeWright
OS: Windows 7 x64
OS Version: 6.01.7601 Service Pack 1
Memory: 54% Load, 8818MB/16265MB Physical, 10267MB/32528MB Page File, 325MB/8388607MB Virtual
Shell Information: C:\Windows\system32\cmd.exe /q
Screen Size: 1680 x 1050, 1680 x 1050, 1680 x 1050, 1680 x 1050
Project Type: (Other)
Language: .txt (Plain Text)
Encoding: Automatic
Installation Directory: C:\Program Files\SlickEdit Pro 20.0.3\ (non-removable drive,NTFS,1832457MB free)
Configuration Directory: C:\Users\rbennet\Documents\My SlickEdit Config\20.0.3\ (non-removable drive,NTFS,1832457MB free)
Migrated from: C:\Users\rbennet\Documents\My SlickEdit Config\20.0.2\