If you see this error in Act: Error: Version string portion was too short or too long, the issue is the Activation key being used by Act was created with a version mismatch on the Act licensing system.
To resolve this do the following.
1) The Activation key needs to be corrected by Swiftpage - you need to contract
2) Once that has been resolved, browse to C:\ProgramData\ACT and delete the following files and folder:
Folder - ActData
3) Go back through the Activation Wizard to register Act using the fixed Activation key