MSFTCompression.Core.Cab

Question

Rene Moergeli 1

Wondering why to create a Cab file from a folder takes very long.

24 minutes compared to 3 minutes e.g. using 7-Zip to created a 7z file or File Explorer "Send to/Compressed (zipped) folder.

CabInfo cabToPack = new CabInfo(cabDestinationFile);
cabToPack.Pack(cabSourceDir, true, Microsoft.Deployment.Compression.CompressionLevel.Max, null);

Viorel 122.6K Reputation points

2021-12-11T16:56:27.963+00:00

I think that it’s normal since the algorithms are different and were implemented differently.

To make a CAB file from a list of files, you can also try the MAKECAB command-line tool manually according to documentation.
Karen Payne MVP 35,586 Reputation points Volunteer Moderator

2021-12-11T18:30:56.927+00:00

Check the repository code.
Rene Moergeli 1 Reputation point

2021-12-12T11:10:43.757+00:00

I did a test and did the same with Makecab.exe. The folder is 1.8 GB in size, on a Samsung SSD disk.

It took 10 minutes with MSFTCompression.Core.Cab, so as with Makecab.exe. No difference.

File Explorer "Send to/Compressed (zipped) folder" of the same folder takes 30 seconds.
Castorix31 90,686 Reputation points

2021-12-12T12:44:11.957+00:00

You can test with Cabinet API Functions, but it is complex...

1 answer

Viorel 122.6K Reputation points

2021-12-11T16:56:27.963+00:00

I think that it’s normal since the algorithms are different and were implemented differently.

To make a CAB file from a list of files, you can also try the MAKECAB command-line tool manually according to documentation.
Karen Payne MVP 35,586 Reputation points Volunteer Moderator

2021-12-11T18:30:56.927+00:00

Check the repository code.
Rene Moergeli 1 Reputation point

2021-12-12T11:10:43.757+00:00

I did a test and did the same with Makecab.exe. The folder is 1.8 GB in size, on a Samsung SSD disk.

It took 10 minutes with MSFTCompression.Core.Cab, so as with Makecab.exe. No difference.

File Explorer "Send to/Compressed (zipped) folder" of the same folder takes 30 seconds.
Castorix31 90,686 Reputation points

2021-12-12T12:44:11.957+00:00

You can test with Cabinet API Functions, but it is complex...

Answer 1

Ken Tucker 5,861

Take a look at the SevenZipSharp NuGet package maybe you can use that with your app.

Rene Moergeli 1 Reputation point

2021-12-12T11:13:37.64+00:00

It can only extract cab files, but cannot create cab files.