My WB folder, at D:\Program Files\Stardock\Object Desktop\WindowBlinds doesn't contain any WBConfig.exe, except insofar as it does contain a wbconfig.exe.manifest, which is an XML file.
According to both Impulse and Stardock Central, neither WindowBlinds nor WindowFX is available, and when I tried to install WB6 via Stardock Central it crashed!
sdcentral.exe 2.54.00 caused exception C0000005 at address 77404DF6 (Base: 400000)
Registers:
EAX=0000031A EBX=00000000 ECX=00000113 EDX=00000000 ESI=00000000
EDI=7E4188A6 EBP=00103244 ESP=00103234 EIP=77404DF6 FLAGS=00240246
CS=001B DS=0023 SS=0023 ES=0023 FS=003B GS=0000
FPU stack:
FFFF0080008000800080 FFFF0000000000000000 400AC8E521D753870000
0246A6A55C7C80545B6C 57F80000001F6773DD01 1FA380502353A6A55D64
FFFF0000000000000000 FFFF009FB69C009FB69C SW=0000 CW=027F
All the other Stardock products I have installed are correctly indicated by "Installed" or "Update available".