The problem with installing version 5.84, which works fine on Win7 32-bit.
1-Delete Xprog from your PC in Program Files or C:/
2-Clean the registry in REGEDIT and delete all old Xprog registry entries.
3-When you launch Xprog, check in Task Manager that Xrogdesktop.exe and Xprogdesktop.dll are running. If not, a file is missing due to antivirus or other reasons.
I have Xprog 5.55 and I upgraded to 5.84.
If anyone has improved their speed again, please let us know.
Thanks.