As known, downloading Unikey is a Vietnamese typing software that fully supports all Windows versions from the past to present. Utilizing Unikey is straightforward; users can type Vietnamese in program windows on Windows operating systems.
When installing Unikey 4.2 on Windows XP, you may encounter the error message 'Unikey 4.2 RC1 is not a valid WIN32 application
This is normal as Unikey 4.2 RC1 does not support Windows XP, hence you cannot install it.
How to fix Unikey 4.2 RC1 installation error on Win XP
The only solution is to use the older version of Unikey 4.0. You can download it from the following links depending on your operating system:
- Download Unikey 4.0 32-bit version
- Download Unikey 4.0 64-bit version