Ok so after reading your PM, old threads, etc. I realize my mistake and I apologize. So I should ask this then: Does anyone the 16-bit version of compress.exe from Microsoft? I have very very old versions that had SZDD and KWAJ compression but not a version with Quantum or MSZIP (if ever there was one). The compress.exe that I mention I got from an old FoxPro release BTW. So is there any compress.exe that is 16-bit and supports Quantum? Or was all Quantum compression handled in 32-bit from the get-go and am I chasing a "ghost"? PS: Would you mind sharing the 1.00.0520 version of DIAMOND/EXTRACT? Thanks.