The version 7.22 install directory causes Visual Assist to crash when using C++Builder. This environment variable causes the problem:
FLEXCELVCLNT=C:\Users\weirdev\AppData\Local\tms\Products\tms.flexcel.vcl
The workaround I was able to use is to define Environment variable like this:
TMS=C:\Users\weirdev\AppData\Local\tms\Products
FLEXCELVCLNT=tms.flexcel.vcl
And then in include and library paths to use $(TMS)\$(FLEXCELVCLNT).
This works fine.