>..."SERIALNUMBER"
>..."LicenseOK="1"
>.. .LicenseCheck is actually called _CheckLicense@4 and appears in TKCommonAct.
>

I can't download any attachments yet, but...
Seems there is a custom dll with exported function _CheckLicense.
This function has one argument (@4), probably pointer to var "SERIALNUMBER".
If function input is valid, it returns 1 (LicenseOK=1)