C# packer

[DABhand]

Originally Posted by rendari

Actually DABhand,

With C# and VB.net files the code is compiled into Microsoft Intermediate Language. Then, once you run the exe a Just in Time compiler will compile the
Microsoft Intermediate Language code into native code and then execute it. Also, I think that the Just In Time compiler also checks the PE header to see if it has been changed, because if you change the PE header, the exe wont run. Since most exe packers change the PE header, the exe will not be able to run because the JIT detects these changes and wont run. CEXE packed exes, however, when unpacked do not have any changes in the PE header, thereby allowing the packed VB.net exe or C# exe to run.

The exe will call on API's that is used via either C# or VB.net. Unless they were stated to be included with the exe, which they never do to reduce sizes.

Hence why most c# or VB proggies require runtime files etc to make em work.

But the initial exe is encoded to a general language that the comp understands.

The only reason that Muji is having problems is that possibly the compiler, wrapped the exe for him already.

[Muji-FightR]

Originally Posted by DABhand

The only reason that Muji is having problems is that possibly the compiler, wrapped the exe for him already.

At first i want to thank you guys for your support and feedback !
@DABHand:
Does this mean the file is already packed while compiling ? I get a result of 200kb merged to 90 kb with ASPack ?! That's why i thought it could be packed again (it finally didn't start but hey, it was a 60% smaller :/ )...

[caki]

I think that the Jitter is acting as a wrapper in this case, preventing muji from packing the file. Thats why I suggested cexe. I have used it in the past to compress vb.net exes. Cexe decompresses the exe onto the hard drive and then runs it, making no changes to the intial exe, while other packers change the PE header, making the Jitter not want to run due to an invalid checksum, crc, or whatever on the PE header.

BTW muji, try dling cexe from here:
http://protools.cjb.net/

I dled from there and packed a custom c# prog I made. It worked fine, so it should also work for you.

[cdkiller]

i suggest UPack v0.30 it got a very high compression ratio.
http://dwing.go.nease.net/

easy to unpack but you asked for a good compression ratio for pe files

[Muji-FightR]

Oh Oh Oh !
It took about 2 weeks to notice that CEXE only works with cmd line
How stupid am I ?
Now it finally works good, got a 115 kb file (before 230). the only problem is, it doesn't restart (my prog). There is an option "restart program" but it will not work Not very bad, at least it works quite good your program !

Very big thanks for your help

cheers muJi