Windows 10: Something lost in compressing/uploading/downloading/decompressing

I've written a program that I want to make available to users on my webpage.
The package consists of seven files: the .exe file, a .dll file, and five data files.
I send all seven to a compressed (zipped) folder, so the user needs to download only one thing.
I upload the .zip folder to my webpage.
A user informed me of a bug: a certain (unlikely) move by the user crashes the program.
I corrected the bug: the program no longer crashes on my machine.
I package the new (corrected) .exe file, with the others, in a new .zip folder and upload it.
I download the .zip folder, unpack it, run the program, do the unlikely move, and it still crashes.
Is this caused by the packing/unpacking? No, if I pack just the .exe file, upload, download, and unpack it, it runs without the bug.
I insert a message to appear when the program first loads, just to be sure I'm dealing with the right version (I pack, upload, download, unpack), and ooops!, that message fails to appear.
Can you guess from this summary where the corrected version of the program is getting replaced by an older, defective version?

:)

 

Files in C: drive automatically compressing?

Hi Marvin,

You can set the compression state of folders and compress or decompress files by using My Computer or a command-line program called Compact. We recommend following these steps to set a folder in a decompression state:

• 
  Start Windows Explorer . In the left pane, select the folder you want to compress or decompress.
  
• 
  On the File menu, click Properties to display the
  Properties dialog box.
  
• 
  On the General tab, click Advanced .
  
• 
  In the Advanced Attributes dialog box, clear the Compress contents to save disk space check box, and then click
  OK .
  
• 
  In the Properties dialog box, click OK .
  
• 
  To keep existing files or subfolders in the NTFS folders in their current compression state, click
  Apply changes to this folder only , and then click OK .
  

Let us know if you need further help.

 

Increase image file upload size cap

that's a good idea

 

COMPRESSING Drives

Definitely, not only does every file have to be decompressed before use, but the decompression and compression on every file access adds system overhead. The compression is smart enough to not compress the most commonly used OS files, but it still gives a pretty big hit on performance.