This is because the ISSP programmer is not supported for Windows 7 64 bit version. You can find the supported OS information from the release notes installed with the ISSP software.
Guess what, it doesn't even work with Win7 32 bit.
Cypress is joke, no support for small companies who want to use PSoCs in their products but can't afford $5K for a production programmer.
The model from BK precision support programming of all Cy8C mcu both on socket as ISP.